Chapter 5. Circuit Description - Sharp UP-5700 Service Manual

CHAPTER 5. CIRCUIT DESCRIPTION

1.
1-1. CPU
Pentium Processor: A80502CSLM66133SY028
External Bus Interface: 66MHz/60MHz
L1 cache: 8K Code & 8K Data (Writeback) cache
64-Bit Data Bus
1-2. Chipset
FireStar ACPI: 82C700U2.2
PCI Bus:
DRAM controller
(FPM, EDO or SDRAM): FPM or EDO supported
ISA Bus: AT Clock = 8.33MHz/7.5MHz
Bus Mastering IDE: Primary IDE supported, Not Secondary
Thermal Management:
Unified Memory Management (UMA):
DMA controller: 8237A
Interval Timer: 8254
Interrupt controller: 8259
1-3. PS/2 Keyboard Controller
KBC: M38802M267
Full keyboard control
Mouse control (Not used)
Matrix Key control: used for POS Keyboard (Normal/Flat)
control (Not used)
1-4. Graphic Controller
VGAC: T65550B
PCI/VL/ISA Interface: used for PCI Interface
32-Bit memory interface
EDO DRAM Support
LCD (800 600 24bpp, STN & TFT) control
APM
1-5. Super I/O Controller
M5113A2
FDC: Disable
Serial Port: 16C550 compatible with Infrared
Parallel Port: used for Parallel 1 (378h-37Fh)
1-6. Pos System Controller 2
PSC2: LZ9AM22
BIOS ROM Bank Control: Fixed 2banks
Mask ROM Bank Control: Fixed 256banks
Flash ROM Bank Control: Max. 384banks
PS-RAM Bank Control: Max. 192banks
UART 5: Serial port 5ch
Clocked Serial I/O 2: CKDC VII I/F, ER-A8DP I/F
Mode Switch Sense: 16bits (Not used)
2
2
2
Clerk Switch Sense:
MCR I/F:
Drawer I/F:
1-7. Memory
L2 cache:
System Memory:
BIOS ROM:
DOS ROM:
Flash ROM Disk:
PS-RAM Disk:
Video RAM:
1-8. Vacuum Fluorescent
Display Unit:
VFD = 20 Digits 2 Lines, 5
Microcontroller with Character Generator
RS-232C I/F (RXD/DSR/DTR, 4800/9600/19200/38400bps):
Power:
Auto indicator blinking:
1-9. LCD
Color LCD:
1-10. Analog Touch Panel
Controller:
Serial (TTL, ASYNC)
(2400/4800/9600bps):
Resolution:
1-11. System Switch
DIP Switch:
Jumper Switch:
1-12. COM Ports
COM1 (for serial device/Handy scanner):
COM2 (for serial device/Handy scanner):
5 – 1
16bits (UP-5700 supports 76 its clerks)
2track
4drawers (UP-700 supports 2drawers.)
None
DRAM Standard = 1M 16b EDO
Asym 60ns Vcc = 3.3V 4chip (8MB)
Option = 144pin S.O.DIMM socket
1 (8MB/16MB/32MB/64MB[Fu-
ture])
512K 8b (512KB) Flash ROM
Vcc = 5.0V
2M 16b (4MB) Mask ROM
Vcc = 5.0V
Standard = 1M 16b (2MB)
Vcc = 5.0V
Option = 2M 16b (4MB)
Standard = 512K 8b 2chip (1MB)
Vcc = 3.3V
Option = 512K 8b 4chip (2MB)
256K 16b 2chip (1MB)
Vcc = 3.3V
M202MD11AB (used Pole display unit:
UP-P20DP)
7dots with: (Period & Comma) + 20
used for 9600bps
+ 5VDC / 1A
When power is turn on, automatically
blink the indicator of 1 st digit.
10.4" TFT 640 480 256color (used
for UP-5700)
N010-0559-V021
used for 9600bps
1024 1024
6circuits
2circuits
Ci /+ 5V possibility
DSUB9 with FIFO (by Super I/O)
Ci /+ 5V possibility
DSUB9 with FIFO (by Super I/O)