Casio QT-2100 - Page 17

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5 V Backup
3.3 V Backup
V-RAM
LCDC
IC4
EP-ROM
IC 10
IC 1
5 V
RDISP
DALLAS
DRAWER
MCR
BUZZER
KEY
MENU
I/O
CONTROLLER
IC11
3.3 V
5 V
SERIAL
SERIAL
RS232C
1.9 V + 3.3 V
CPUBUS
FROM
IC 9
EDORAM
IC 8, 12
EDORAM
(OPTION)
buf
CF-CARD
buf
PCMCIA
3.3 V or 5 V
GA
IC 15
ARC-NET
232C
232C
232C
232C
232C
5 V
3.3V unless otherwise specified
CPU (SH3)
IC7
back up Vrtc only
5-2. LSI BLOCK DIAGRAM