
2. EXPLANATION OF MODULE FUNCTIONS
2.2 HR121 Card
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2.2 HR121 Card
[Block diagram]
RT-BUS
ISA-BUS
LCD
CFD
HDD
CF12
CARD PC
2.5inch HDD
3.5inch FDD
2-port RAM
10.4-inch color LCD
TFT/STN
General purpose serial
RS-232-C I/F
2ch
Mouse input
Full keyboard input
[Explanation of functions]
The HR121 card is the man-machine interface for the M635/M655 system, and has the following
functions.
2-port RAM
For data transmission/reception
Card PC I/F
CARDPC connector
For the card PC
ISA bus I/F
ISA connector
For PCMIA card HR841 connection
Floppy disk I/F
CFD connector
For 3.5-inch FDD connection
Hard disk I/F
HDD connector
For 2.5-inch HDD connection
General purpose serial I/F
CF12 connector
RS-232-C specifications: 2ch
Mouse input I/F
CF12 connector
PS/2 compatible
Full keyboard I/F
CF12 connector
PS/2 compatible
Display output I/F
LCD connector
For 10.4-inch color LCD TFT/STN
RTBUS I/F
RTBUS connector
For HR111 card connection