Sharp XE-A203 Service Manual - Page 8

Hardware Description - driver

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CHAPTER 4. HARDWARE DESCRIPTION 1. HARDWARE BLOCK DIAGRAM POWER DRY Battery 5.8V 5.0V BUZZER 3.3V 7.9V 23.8V 12MHz CPU Renesus RESET IC 32.768kHz DRAWER M30624MWPD85FP ROM 320KByte RAM 24KByte LV125 HCT04 SD CARD Driver/Sensor PRINTER MT53II MOTOR S-RAM 128KByte USB Controller M66291GP USB Type B 74H374 SEG Driver Decoder 74HC138 x 2 4 to 16 DIG Driver KEY SCAN KEY RETURN LED Front 10 PopUp 7 KEY SWITCH CPU: External RAM: Printer: USB controller: M30624MWP-D85FP (Renesus) ROM 320KByte (MASK) RAM 24KByte 1Mbit (128K x 8) CYPRESS CY62128BLL-70SXI MT53II (EPSON) M66291GP (Renesus) 2. MEMORY MAP 1MByte mode/The CS area PM13 = 1 is selected. CPU internal RAM: External RAM: 24KByte 00400h-063FFh 128KByte 08000h-27000h (Area that can be used 124KByte) 00000h 00400h 063FFh 06400h CPU internal RAM 24KByte 00400h-063FFh 08000h External RAM 128KByte /CS2 27000h 28000h USB controller 30000h Segment Latch Address /CS1 /CS0 80000h B0000h CPU internal MASK ROM 320KByte B0000h-FFFFFh FFFFFh XE-A203U/XE-A203A HARDWARE DESCRIPTION - 6 -

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XE-A203U/XE-A203A
HARDWARE DESCRIPTION
– 6 –
CHAPTER 4. HARDWARE DESCRIPTION
1.
HARDWARE BLOCK DIAGRAM
<Main parts>
2.
MEMORY MAP
1MByte mode/The CS area PM13 = 1 is selected.
CPU:
M30624MWP-D85FP (Renesus)
ROM 320KByte (MASK) RAM 24KByte
External RAM:
1Mbit (128K x 8)
CYPRESS CY62128BLL-70SXI
Printer:
MT53II (EPSON)
USB controller:
M66291GP (Renesus)
RESET IC
BUZZER
12MHz
32.768kHz
DRY Battery
POWER
5.8V
5.0V
3.3V
7.9V
23.8V
DRAWER
LV125
HCT04
SD CARD
USB
Type B
MOTOR
PRINTER
MT53II
Driver/Sensor
KEY RETURN
KEY SCAN
KEY
SWITCH
Decoder
74HC138 x 2
4 to 16
LED
Front 10
PopUp
7
DIG
Driver
SEG
Driver
74H374
USB
Controller
M66291GP
S-RAM
128KByte
CPU
Renesus
M30624MWP-
D85FP
ROM 320KByte
RAM
24KByte
CPU internal RAM:
24KByte 00400h-063FFh
External RAM:
128KByte 08000h-27000h
(Area that can be used 124KByte)
00000h
00400h
063FFh
CPU internal RAM
24KByte 00400h-063FFh
06400h
08000h
External RAM
128KByte
27000h
28000h
USB controller
30000h
Segment Latch Address
80000h
B0000h
FFFFFh
CPU internal MASK ROM
320KByte B0000h-FFFFFh
/CS0
/CS2
/CS1