-28-
Pin No.
Pin Name
I/O
Description
1
2 ~ 8
9
10 ~ 16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34 ~ 41
42
43
44
45 ~ 48
49
50 ~ 53
54
55
56
57 ~ 64
VSS
RA0 ~ RA6
VSS
RA7 ~ RA13
VSS
__________
RA13
________
RCS
_________
RWE
________
ROE
____________
RESET
XTALCK
VDD
C2PO
BCK
SDATA
LRCK
RS
_____
RD
_______
WR
_____
CS
VSS
D0 ~ D7
PSRAM
_______
INT
DRQ
HD0 ~ HD3
VSS
HD4 ~ HD7
________
HRD
___________
DTEN
VDD
IO0 ~ IO7
–
O
–
O
–
O
O
O
O
I
I
–
I
I
I
I
I
I
I
I
–
I/O
I
O
O
O
–
O
I
O
–
I/O
IC DESCRIPTION - 4/6 (LC89513K) - 1/1
Ground
Address signal outputs to data buffer RAM
Ground
Address signal outputs to data buffer RAM
Ground
Address signal output to data buffer RAM
Chip select output to RAM
Data write signal to RAM
Data read signal from RAM
Reset input. "L": Reset
Crystal oscillator circuit input
Power supply
C2 pointer input
Clock for serial data input
Serial data input
44.1kHz strobe signal input
Register select signal
CPU data read signal input
CPU data write signal input
Chip select signal input from CPU
Gournd
CPU data signal pins. Pull-up resistors are incorporated.
Pseudo SRAM select pin
Interrupt request signal output to CPU
DRQ signal output
Data output to CPU
Ground
Data output to CPU
Data read signal input
Data enable signal output
Power supply
Data buffer signal pins. Pull-up resistors are incorporated.
