Pin Name
F u n c t i o n
Al6
0
Address bus (Open)
Al7
0
Address bus (Open)
v c c
Power
supply
Al8
0
Address bus (Open)
A19
0
Address bus (Open)
46
0 Address bus (Open)
I
A21
c s o x
0
Address bus (Open)
0
Area 0 chip select (Open)
49
UCAS
UCAS signal
to DRAM
I
51
52
53
54
CS-ROM
0
Chip select for ROM (Open)
I
LCAS
0
LCAS signal output to DRAM
I
cs-CUTE
Ground
0
Chip select for CUTE
RAS
0 RAS signal output to DRAM
I
IRDA-CS
cs-SNTR
0
Chip select for IRDA
0
Chip select for the logic
W R
TSTO
0
Writing
I
Test mode input
R D
I
0
I
Reading
I
I
Input with fixed at “H”.
I
I
I Ground
I
I
Input with fixed
I
62
63
0 Interruption output (Open)
I
64
0 Buzzer control
I
SNTR-ACK
IR-DACX
IR-DREO
0
Acknowledge signal to external
0
DMA acknowledge signal
I
DMA request signal input
MAC-HSKI
I
I
I
MAC
I
AT-FD/HOS-B
v c c
I
External AUTO-FD signal input
Power supply
CK-OUT
v s s
EXTL
0
System clock (Open)
Ground
I
Crystal oscillation input (14.3 MHz)
73
74
75
X T L
v c c
v c c
0
Crystal oscillation output (14.3 MHz)
Power supply
I
External initialization signal input
: Initialization)
Power supply
78
WDT
I
0
I
Watchdogtimeroverflow
I
RESET
I
Reset
I
I Mode
