Toshiba TXZ User manual

TXZ Family
Flash Memory
2018-06-05 1 / 120 Rev. 2.0
© 2018
Toshiba Electronic Devices & Storage Corporation
2018-06
32-bit RISC Microcontroller
TXZ Family
Reference Manual
Flash Memory
(Code Flash: 1.5MB/1.0MB/768KB/512KB)
(Data: Flash 32KB)
(FLASH15MHD32-A)
Revision 2.0

TXZ Family
Flash Memory
2018-06-05 2 / 120 Rev. 2.0
Contents
Preface ................................................................................................................................................................. 8
Related documents ................................................................................................................................................... 8
Conventions ............................................................................................................................................................ 9
Terms and Abbreviation .......................................................................................................................................... 11
1. Outline ......................................................................................................................................................... 12
Memory map .................................................................................................................................................... 14
2. Configuration ............................................................................................................................................... 15
Block Diagrams ................................................................................................................................................ 15
Configuration of Code Flash ............................................................................................................................ 16
2.2.1. Unit of the composition ............................................................................................................................................... 16
2.2.2. Block Configuration .................................................................................................................................................... 16
2.2.3. Page Configuration ..................................................................................................................................................... 21
2.2.4. User Information Area Configuration of Code Flash ................................................................................................... 24
2.2.5. Program/Erase Time of Code Flash ........................................................................................................................... 24
2.2.6. Memory Capacity and the Configuration .................................................................................................................... 25
Configuration of Data Flash ............................................................................................................................. 26
2.3.1. Unit of the composition ............................................................................................................................................... 26
2.3.2. Block Configuration of Data Flash .............................................................................................................................. 26
2.3.3. Page Configuration ..................................................................................................................................................... 27
2.3.4. Program/Erase Time of Data Flash ............................................................................................................................ 28
2.3.5. Memory Capacity and the Configuration .................................................................................................................... 28
3. Function Description and Functional Explanations .................................................................................... 29
Code Flash ....................................................................................................................................................... 30
3.1.1. Command Sequence .................................................................................................................................................. 30
3.1.1.1. List of Command Sequence .......................................................................................................................................... 30
3.1.1.2. Address Bit Configuration in the Bus Write Cycle (Code Flash) .................................................................................... 32
3.1.1.3. Area Address (AA), Block Address (BA): Code Flash .................................................................................................... 34
3.1.1.4. Protect Bit Assignment (PBA): Code flash ..................................................................................................................... 34
3.1.1.5. ID-Read Code (IA, ID): Code Flash ............................................................................................................................... 36
3.1.1.6. Memory Swap Bit Assignment (MSA) ............................................................................................................................ 36
Data Flash ........................................................................................................................................................ 37
3.2.1. Command Sequence .................................................................................................................................................. 37
3.2.1.1. List of Command Sequence .......................................................................................................................................... 37
3.2.1.2. Address Configuration in the Bus Write Cycle (Data Flash)........................................................................................... 38
3.2.1.3. Area Address (AA), Block Address (BA) ........................................................................................................................ 39
3.2.1.4. Protect Bit Assignment (PBA) ........................................................................................................................................ 40
3.2.1.5. ID-Read Code (IA, ID): Data Flash ................................................................................................................................ 40
Flowchart.......................................................................................................................................................... 41
3.3.1. Automatic Programming ............................................................................................................................................. 41
3.3.2. Automatic Erasing ...................................................................................................................................................... 43
3.3.3. Protect bit ................................................................................................................................................................... 45
3.3.4. Security bit .................................................................................................................................................................. 47

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3.3.5. Memory Swap............................................................................................................................................................. 49
4. Details of Flash Memory ............................................................................................................................. 51
Functions.......................................................................................................................................................... 51
4.1.1. Operation Mode of the Flash Memory ........................................................................................................................ 52
4.1.2. Command Execution .................................................................................................................................................. 52
4.1.3. Command Description ................................................................................................................................................ 54
4.1.3.1. Automatic Programming ................................................................................................................................................ 54
4.1.3.2. Automatic chip erasing .................................................................................................................................................. 55
4.1.3.3. Automatic Area Erasing ................................................................................................................................................. 55
4.1.3.4. Automatic Block Erasing ............................................................................................................................................... 56
4.1.3.5. Automatic Page Erasing ................................................................................................................................................ 56
4.1.3.6. Automatic Protect Bit Programming............................................................................................................................... 56
4.1.3.7. Automatic Protect Bit Erasing ........................................................................................................................................ 57
4.1.3.8. Automatic Security Bit Programming ............................................................................................................................. 57
4.1.3.9. Automatic Security Bit Erasing ...................................................................................................................................... 58
4.1.3.10. ID-Read ....................................................................................................................................................................... 58
4.1.3.11. Read/Reset Command ................................................................................................................................................ 59
4.1.3.12. Automatic Memory Swap ............................................................................................................................................ 59
4.1.3.13. Automatic Memory Swap Erasing ............................................................................................................................... 59
4.1.4. Stopping Automatic Chip Erasing ............................................................................................................................... 60
4.1.5. Completion Detection of the Automatic Operation ...................................................................................................... 60
4.1.5.1. Procedure ..................................................................................................................................................................... 60
4.1.6. Protection Function ..................................................................................................................................................... 61
4.1.6.1. How to Set the Protection Function ............................................................................................................................... 61
4.1.6.2. Protection Release ........................................................................................................................................................ 61
4.1.6.3. Protection Temporary Release Function ....................................................................................................................... 61
4.1.7. Security Function ........................................................................................................................................................ 62
4.1.7.1. Security Setting ............................................................................................................................................................. 62
4.1.7.2. Security Setting Release ............................................................................................................................................... 62
4.1.7.3. Operation ...................................................................................................................................................................... 62
4.1.8. Memory Swap Function .............................................................................................................................................. 63
4.1.8.1. Memory Swap Setting ................................................................................................................................................... 63
4.1.8.2. Memory Swap Operation ............................................................................................................................................... 63
4.1.8.3. Erasing the Memory Swap Information .......................................................................................................................... 64
4.1.9. User Information Area ................................................................................................................................................ 65
4.1.9.1. Switching Procedure of the User Information Area ........................................................................................................ 65
4.1.9.2. Data programming Method for the User Information Area ............................................................................................. 65
4.1.9.3. Data Erasing Method for the User Information Area ...................................................................................................... 65
5. Registers ..................................................................................................................................................... 66
Register List ..................................................................................................................................................... 66
Detail of Register ............................................................................................................................................. 67
5.2.1. [FCSBMR] (Flash Security Bit Mask Register) ........................................................................................................... 67
5.2.2. [FCSSR] (Flash Security Status Register) .................................................................................................................. 67
5.2.3. [FCKCR] (Flash Key Code Register) .......................................................................................................................... 67
5.2.4. [FCSR0] (Flash Status Register 0) ............................................................................................................................. 68

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5.2.5. [FCPSR0] (Flash Protect Status Register 0) .............................................................................................................. 69
5.2.6. [FCPSR1] (Flash Protect Status Register 1) .............................................................................................................. 70
5.2.7. [FCPSR3] (Flash Protect Status Register 3) .............................................................................................................. 71
5.2.8. [FCPSR4] (Flash Protect Status Register 4) .............................................................................................................. 71
5.2.9. [FCPSR6] (Flash Protect Status Register 6) .............................................................................................................. 72
5.2.10. [FCPMR0] (Flash Protect Mask Register 0) ............................................................................................................. 72
5.2.11. [FCPMR1] (Flash Protect Mask Register 1) ............................................................................................................. 73
5.2.12. [FCPMR3] (Flash Protect Mask Register 3) ............................................................................................................. 74
5.2.13. [FCPMR4] (Flash Protect Mask Register 4) ............................................................................................................. 75
5.2.14. [FCPMR6] (Flash Protect Mask Register 6) ............................................................................................................. 76
5.2.15. [FCSR1] (Flash Status Register 1) ........................................................................................................................... 76
5.2.16. [FCSWPSR] (Flash Memory SWAP Status Register) ............................................................................................... 77
5.2.17. [FCAREASEL] (Flash Area Selection Register)........................................................................................................ 78
5.2.18. [FCCR] (Flash Control Register) ............................................................................................................................... 79
5.2.19. [FCSTSCLR] (Flash Status Clear Register) ............................................................................................................. 79
5.2.20. [FCBNKCR] (Flash Bank Change Register) ............................................................................................................. 80
5.2.21. [FCBUFDISCLR] Flash Buffer Disable and Clear Register ...................................................................................... 80
6. The programming method .......................................................................................................................... 81
Initialization ...................................................................................................................................................... 81
Mode Description ............................................................................................................................................. 81
Mode Determination ......................................................................................................................................... 82
Memory Map in Each Mode ............................................................................................................................. 82
How to Reprogramming the Flash ................................................................................................................... 82
6.5.1. (1-A) Procedure that a Programming Routine Stored in Flash memory ..................................................................... 83
6.5.1.1. Step-1 ........................................................................................................................................................................... 83
6.5.1.2. Step-2 ........................................................................................................................................................................... 84
6.5.1.3. Step-3 ........................................................................................................................................................................... 84
6.5.1.4. Step-4 ........................................................................................................................................................................... 85
6.5.1.5. Step-5 ........................................................................................................................................................................... 85
6.5.1.6. Step-6 ........................................................................................................................................................................... 86
6.5.2. (1-B) Procedure that a Programming Routine is Transferred from External Host ....................................................... 86
6.5.2.1. Step-1 ........................................................................................................................................................................... 86
6.5.2.2. Step-2 ........................................................................................................................................................................... 87
6.5.2.3. Step-3 ........................................................................................................................................................................... 87
6.5.2.4. Step-4 ........................................................................................................................................................................... 88
6.5.2.5. Step-5 ........................................................................................................................................................................... 88
6.5.2.6. Step-6 ........................................................................................................................................................................... 89
How to Reprogram the Flash in Single Boot Mode ......................................................................................... 90
6.6.1. Single Boot Mode ....................................................................................................................................................... 90
6.6.2. Mode Setting .............................................................................................................................................................. 91
6.6.3. Interface Specifications .............................................................................................................................................. 91
6.6.4. Restrictions on Memories ........................................................................................................................................... 92
6.6.5. Operation Command .................................................................................................................................................. 92
6.6.5.1. RAM transfer ................................................................................................................................................................. 92
6.6.5.2. Flash Memory Erasing .................................................................................................................................................. 92

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6.6.6. Common Operation Regardless of the Command ...................................................................................................... 93
6.6.6.1. Serial Operation Mode Determination ........................................................................................................................... 93
6.6.6.2. Acknowledgement Response Data ............................................................................................................................... 95
6.6.6.3. Password ...................................................................................................................................................................... 96
6.6.6.4. Password Determination ............................................................................................................................................... 99
6.6.6.5. CHECKSUM Calculation ............................................................................................................................................... 99
6.6.7. Communication Rules for Determination of Serial Operation Mode ......................................................................... 100
6.6.8. Communication Rules of RAM Transfer Command .................................................................................................. 101
6.6.9. Communication Rules of Flash memory Erasing ...................................................................................................... 103
6.6.10. Internal Boot Program General Flowchart .............................................................................................................. 104
6.6.11. Reprogramming Procedure of the Flash Using Reprogramming Algorithm in Boot ROM ...................................... 105
6.6.11.1. Step-1 ....................................................................................................................................................................... 105
6.6.11.2. Step-2 ....................................................................................................................................................................... 105
6.6.11.3. Step-3 ....................................................................................................................................................................... 106
6.6.11.4. Step-4 ....................................................................................................................................................................... 106
6.6.11.5. Step-5 ....................................................................................................................................................................... 107
6.6.11.6. Step-6 ....................................................................................................................................................................... 107
How to Reprogramming using Dual Mode ..................................................................................................... 108
6.7.1. Example of Flash Memory Reprogramming Procedure ............................................................................................ 108
6.7.1.1. Step-1 ......................................................................................................................................................................... 108
6.7.1.2. Step-2 ......................................................................................................................................................................... 109
6.7.1.3. Step-3 ......................................................................................................................................................................... 109
6.7.1.4. Step-4 ......................................................................................................................................................................... 110
6.7.1.5. Step-5 ......................................................................................................................................................................... 110
How to Reprogramming User Boot Program ................................................................................................. 111
6.8.1. Example of Flash Memory Reprogramming Procedure ............................................................................................ 111
6.8.1.1. Step-1 ......................................................................................................................................................................... 111
6.8.1.2. Step-2 ......................................................................................................................................................................... 112
6.8.1.3. Step-3 ......................................................................................................................................................................... 112
6.8.1.4. Step-4 ......................................................................................................................................................................... 113
6.8.1.5. Step-5 ......................................................................................................................................................................... 113
6.8.1.6. Step-6 ......................................................................................................................................................................... 114
6.8.1.7. Step-7 ......................................................................................................................................................................... 114
6.8.1.8. Step-8 ......................................................................................................................................................................... 115
6.8.1.9. Step-9 ......................................................................................................................................................................... 115
6.8.1.10. Step-10 ..................................................................................................................................................................... 116
7. General Precautions ................................................................................................................................. 117
8. Revision History ........................................................................................................................................ 118
RESTRICTIONS ON PRODUCT USE ............................................................................................................. 120