Toshiba T-Series T2200sx User manual

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Chapter 1
Hardware Overview

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Contents
1.1 T2200SX Features.............................................................................................................1-5
1.2 System Unit Block Diagram .............................................................................................. 1-8
1.3 3.5-inch Floppy Disk Drive ............................................................................................. 1-11
1.4 2.5-inch Hard Disk Drive ................................................................................................ 1-12
1.5 Keyboard......................................................................................................................... 1-13
1.6 Sidelit Liquid Crystal Display ......................................................................................... 1-14
1.6.1 LCD Module..................................................................................................... 1-14
1.6.2 FL Inverter Board ............................................................................................. 1-15
Tables
Table 1-1 3.5-inch FDD specifications................................................................................. 1-11
Table 1-2 2.5-inch HDD specifications ................................................................................ 1-12
Table 1-3 Sidelit LCD specifications ................................................................................... 1-14
Table 1-4 FL inverter board specifications........................................................................... 1-15
Figures
Figure 1-1 T2200SX personal computer..................................................................................1-7
Figure 1-2 T2200SX system unit configuration.......................................................................1-7
Figure 1-3 T2200SX block diagram ........................................................................................1-8
Figure 1-4 3.5-inch FDD....................................................................................................... 1-11
Figure 1-5 2.5-inch HDD ...................................................................................................... 1-12
Figure 1-6 Keyboard ............................................................................................................. 1-13
Figure 1-7 Sidelit LCD ......................................................................................................... 1-14

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1.1 T2200SX Features
The Toshiba T2200SX is one of the lightest and most advanced portable computers available.
Utilizing advanced Large Scale Integration (LSI) and Complimentary Metal-Oxide Semiconductor
(CMOS) technology and high speed components, the T2200SX provides a minimum size, light
weight, low power usage, and high reliability machine. The T2200SX also offers excellent display
legibility, battery operation, and IBM PC/AT compatibility.
The T2200SX system unit consists of the following:
Microprocessor An 80386SX-20 32-bit microprocessor, operating at either 20MHz or 10MHz.
It is also capable of a 5MHz sleep mode.
Math co-processor A built-in socket is provided for an 80387SX-20 math co-processor (NDP).
Memory 2MB of CMOS Random Access Memory (RAM) is provided as standard
memory. This includes 640KB of conventional and 1408KB of extended
memory that can be utilized as expanded memory compatible with the Lotus/
Intel/Microsoft Expanded Memory Specification (LIM-EMS). The standard
memory is expandable by 2, 4, or 8MB increments to a maximum of 10MB.
Disk Storage An internal 2.5" 40MB, 60MB, or 80MB Hard Disk Drive (HDD) provides an
average access time of 19ms.
A 3.5" Floppy Disk Drive (FDD) supports 2HD (1.44MB) as well as 2DD
(720KB).
Display A new larger surface area, high resolution, fully adjustable Liquid Crystal
Display (LCD) composed of 640 horizontal and 480 vertical pixels displays
25 lines of standard text, 80 characters wide. The LCD displays 16 levels of
gray and supports the High Resolution Graphics Subsystem (HRGS), includ-
ing video graphics array (VGA) functions.
Keyboard An 82/84-keyboard has full-sized keys, a numeric keypad overlay, cursor and
page control. The keyboard supports software that uses the industry standard
101/102-key keyboard.
AC Adapter The universal auto-sensing AC adapter supplies power to operate the
T2200SX and recharge its batteries. It can operate from a range of 100 to 240
volts. Optional power cords support various countries’ AC outlet configura-
tions.
UPDATE

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Batteries There are three different batteries: a main battery, for system power; a sub-
battery, for back-up power, and an RTC battery, which keeps the date and
time and system configuration even when power is off.
Mouse Port A PS/2 mouse connector is located on the right side of the computer.
Interface Ports A parallel port, serial port, RGB port, numeric keypad port, and expansion
bus connector are provided to allow the T2200SX to interface with a variety
of optional equipment.

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The T2200SX Personal Computer is shown in Figure 1-1 and the T2200SX system configuration is
shown in Figure 1-2.
Figure 1-1 T2200SX personal computer
Figure 1-2 T2200SX system unit configuration

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1.2 System Unit Block Diagram
Figure 1-3 is a block diagram of the T2200SX system unit.
Figure 1-3 T2200SX block diagram

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The system board in the T2200SX is composed of the following major components:
❑Central Processing Unit (CPU): 80386SX-20
The CPU is a 32-bit microprocessor operating at 20MHz (high) and 10MHz (low) clock
speeds.
❑Math coprocessor (NDP) socket for the 80387SX-20 (optional)
❑Super Integration (SI): T9901
The SI stores the following components:
· Two Direct Memory Access Controllers (DMACs): 82C37A
· Two Programmable Interrupt Controllers (PICs): 82C59A
· One Programmable Interval Timer (PIT): 82C54
· One Floppy Disk Controller (FDC): TC8565
· One Serial Input/Output Controller (SIO): TC8570
· One Variable Frequency Oscillator (VFO): TC8568
· One I/O Controller
❑Real Time Clock (RTC): 146818AF
The RTC chip stores the date, time, and system configuration with power supplied from the
RTC battery.
❑Keyboard Controller (KBC): U37452
❑Power Supply Controller (PSC): U47C440
❑Memory:
Standard RAM: 2MB
Backup RAM: 32KB
BIOS ROM: 128KB (96KB are used)
BIOS ROM contains the Initial Reliability Test (IRT), the system’s
Basic Input/Output System (BIOS), and the video BIOS.
Video RAM: 256KB
Optional memory cards:
The system can have up to 10MB of RAM by installing an optional memory card.
❑System control gate array: GA-SCNT2 (208-pin)
❑VGA display controller: PVGA1F (132-pin)

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❑Oscillators (OSC):
40.0MHz OSC (X1) is used for the CPU.
44.9MHz OSC (X2), 28.322MHz OSC (X3), and 25.175MHz OSC (X4) are used for the
video.
14.7456MHz OSC (X5) is used for the COM.
14.31818MHz OSC (X6) is used for the KBC.
32.768KHz OSC (X7) is used for the RTC.
24MHz OSC (X8) is used for the FDC and VFO.
See Appendix A for the location of the oscillators.

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1.3 3.5-inch Floppy Disk Drive
The T2200SX 3.5-inch Floppy Disk Drive (FDD) is a thin, high performance, reliable drive that
supports 720KB (formatted) 2DD and 1.44MB (formatted) 2HD 3.5-inch floppy disks.
The T2200SX FDD is shown in Figure 1-4 and its specifications are described in Table 1-1.
Figure 1-4 3.5-inch FDD
Table 1-1 3.5-inch FDD specifications
Item 2-Mbyte mode 1-Mbyte mode
Storage capacity (Kbyte)
Unformatted
Formatted 2,000
1,440 1,000 720
Number of heads 2 2
Number of cylinders 80 80
Access time (ms)
Track to track
Average
Head settling time
3
94
15
3
94
15
Recording track density (tpi) 135 135
Data transfer rate (Kbps) 500 250
Rotation speed (rpm) 300 300
Recording method Modified Frequency Modulation (MFM)

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1.4 2.5-inch Hard Disk Drive
The 40MB, 60MB, or 80MB (unformatted) Hard Disk Drive (HDD) is a random access, nonvolatile
storage device. It is equipped with non-removal 2.5-inch magnetic disks and mini-Winchester type
magnetic heads.
The T2200SX HDD is shown in Figure 1-5. The HDD specifications are described in Table 1-2.
Figure 1-5 2.5-inch HDD
Table 1-2 2.5-inch HDD specifications
*Run Length Limited
UPDATE
Item40MB60MB80MB
CP-2044 JD-E2850PCP-2064 JD-E2085M
Storagecapacity
Formatted(Mbytes)42.5 42.52 64.0 85.68
Numberofdisks2 2 2 2
Dataheads4 3 4 4
Datasurfaces4 3 4 4
Trackspersurface 552 791(+2)823 791(+2)
Tracksperdrive2,208 2,373(+6)1,306 3,164
Sectorspertrack 38(+1)35(+1)38(+1)35(+1)
Bytespersector512 512 512 512
Accesstime(ms)
Tracktotrack
Average
Maximum
5
19
40
9
25
47
5
19
40
9
25
47
Rotationspeed(rpm)3,486 3,109 3,444 3,118
Datatransferrate(bps)
To/frommedia12M10M12M5M
Interleave1:1 1:1 1:1 1:1
Recording method 2-7RLL/
1-7RLL
*2-7
RLL*2-7RLL/
1-7RLL
*1-7
RLL

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1.5 Keyboard
The 82-key (USA) or 84-key (European) keyboard is mounted in the system unit. The keyboard is
connected to the keyboard controller located on the system board through a 19-pin flat cable. The
keyboard is shown in Figure 1-6.
See Appendix E for optional keyboard configurations.
Figure 1-6 Keyboard

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1.6 Sidelit Liquid Crystal Display
The sidelit Liquid Crystal Display (LCD) is composed of an LCD module, a Fluorescent Lamp
(FL), and an FL inverter board.
1.6.1 LCD Module
The T2200SX sidelit LCD is illuminated from the side and supports 640x480 pixels with a High
Resolution Graphics Subsystem (HRGS) and 16 levels of gray. The HRGS includes the functions of
the Video Graphics Array (VGA).
The LCD receives vertical and horizontal synchronizing signals, 8-bit data signals (4-bit upper data
signal, 4-bit lower data signal), and shift clock for data transmission from the PVGA1F video
controller. All signals are CMOS-level compatible.
The sidelit LCD is shown in Figure 1-7 and its specifications are described in Table 1-3.
Figure 1-7 Sidelit LCD
Table 1-3 Sidelit LCD specifications
Item Specifications
Number of dots (dots) 640 x 480
Dot dimension (mm) 0.24(W) x 0.24(H)
Dot pitch (mm) 0.27(W) x 0.27(H)
Display area (mm) 183.0(W) x 136.0(H)
Contrast 15:1 (typ.)
FL current (mA) 4.0 - 6.0
FL frequency (KHz) 35 - 43

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Item Specifications
Input Voltage (VDC) 12 - 24
Power (W) 3.6 (Max.)
Output
Voltage (VAC) 800 (Min.)
Current (mA) 5.5
Frequency (KHz) 39
Bounds of current (mA) 3.25 - 5.5
1.6.2 FL Inverter Board
The FL inverter board supplies the high frequency current needed to illuminate the FL.
The specifications for the FL inverter board are described in Table 1-4.
Table 1-4 FL inverter board specifications

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Chapter 2
Operational Overview

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Contents
2.1 General..............................................................................................................................2-5
2.2 Processor........................................................................................................................... 2-7
2.2.1 Clock Mode ........................................................................................................ 2-7
2.2.2 Sleep Mode......................................................................................................... 2-7
2.3 Memory ............................................................................................................................2-8
2.3.1 Real Mode Memory Map .................................................................................... 2-9
2.3.2 Protected Mode Memory Map (Hard RAM = 0MB).......................................... 2-10
2.3.3 EMS Expanded Memory................................................................................... 2-11
2.3.4 Extended Memory ............................................................................................ 2-11
2.3.6 DRAM Address Map ........................................................................................ 2-12
2.4 Interrupts......................................................................................................................... 2-13
2.4.1 NMI Mask Register........................................................................................... 2-14
2.4.2 PIC ................................................................................................................... 2-14
2.5 Direct Memory Access .................................................................................................... 2-15
2.6 Timer .............................................................................................................................. 2-16
2.7 Speaker ........................................................................................................................... 2-17
2.8 Real Time Clock ............................................................................................................. 2-18
2.8.1 RTC Address Map ................................................................................................. 2-18
2.9 Floppy Disk Controller.................................................................................................... 2-19
2.10 Printer Port...................................................................................................................... 2-20
2.11 Keyboard Controller........................................................................................................ 2-21
2.11.1 Key Code Generation........................................................................................ 2-21
2.11.2 Mouse Control Command ................................................................................. 2-22
2.12 RS-232-C Port................................................................................................................. 2-24
2.12.1 Data Format...................................................................................................... 2-24
2.12.2 Input/Output Port.............................................................................................. 2-25
2.12.3 25-pin Connector .............................................................................................. 2-25
2.13 Connectors ...................................................................................................................... 2-26
Tables
Table 2-1 Interrupt assignment ............................................................................................ 2-13
Table 2-2 NMI..................................................................................................................... 2-14
Table 2-3 DMA channel assignment .................................................................................... 2-15
Table 2-4 PIT channel usage................................................................................................ 2-16
Table 2-5 PIT I/O ports ....................................................................................................... 2-16
Table 2-6 RTC address map................................................................................................. 2-18
Table 2-7 Keyboard mode ................................................................................................... 2-21
Table 2-8 Mouse control commands .................................................................................... 2-22
Table 2-9 Mouse interface test error statuses........................................................................ 2-22
Table 2-10 RS-232-C ports and interrupts.............................................................................. 2-25
Table 2-11 RS-232-C ports and COM number....................................................................... 2-25
Table 2-12 9-pin to 25-pin conversion ................................................................................... 2-25

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Figures
Figure 2-1 System unit block diagram.....................................................................................2-6
Figure 2-2 Real Mode Memory Map ......................................................................................2-9
Figure 2-3 Protected Mode Memory Map ............................................................................. 2-10
Figure 2-4 DRAM address map............................................................................................. 2-12
Figure 2-5 Start, parity, and stop bits .................................................................................... 2-24