
AT89STK-03 Hardware User Guide i
7609B–SCR–11/06
Table of Contents
Section 1
Introduction ........................................................................................... 1-1
1.1 Features ....................................................................................................1-1
Section 2
Hardware Description ........................................................................... 2-5
2.1 Block Diagram...........................................................................................2-5
2.2 Power Supply ............................................................................................2-6
2.2.1 Regulator Output Voltage Selection & Power On...............................2-7
2.3 C51 Settings .............................................................................................2-7
2.3.1 INT1 Switch ........................................................................................2-7
2.3.2 EA Jumper..........................................................................................2-7
2.3.3 ALE led ...............................................................................................2-7
2.3.4 Reset ..................................................................................................2-7
2.3.5 Crystal ................................................................................................2-7
2.4 Features Description .................................................................................2-7
2.4.1 LEDs Settings.....................................................................................2-7
2.4.2 USB Peripheral...................................................................................2-8
2.4.3 SPI......................................................................................................2-8
2.4.4 RS232.................................................................................................2-8
2.4.5 SIM Alternate Card .............................................................................2-8
2.4.6 PLL Filter ............................................................................................2-8
2.4.7 EEPROM Settings ..............................................................................2-9
2.5 2 x 48 headers ..........................................................................................2-9
Section 3
Part Programming............................................................................... 3-11
3.1 Bootloader DPW .....................................................................................3-12
3.1.1 ISP mode (In System Programming )...............................................3-12
3.1.2 Execution mode................................................................................3-13
3.2 Bootloader DRV ......................................................................................3-16
3.2.1 ISP Mode..........................................................................................3-16
3.2.2 Execution mode................................................................................3-16
3.3 Bootloader DSU ......................................................................................3-21
3.3.1 ISP Mode..........................................................................................3-21
3.3.2 Execution mode................................................................................3-21