Korg wavestation Service Manual page 43

10.
REFERENCE
DATA
HD641016CP10
PIN
ASSIGNMENT
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HD641016CP10
PIN
FUNCTION
CLASSIFICATION
PIN MARK 1/0
FUNCTION
POWER SUPPLY
vcc
I
POWER SUPPLY
VSS
I
GND
CLOCK
XTAL
1
CRYSTAL
EXTAL
1
EXTERNAL CLOCK
t
SYSTEM CLOCK
E
ENABLE CLOCK
SYSTEM CONTROL
RES I/O
RESET
BRTRY
I
BUS CYCLE RETRY
BREO
I
BUS REQUEST
BACK
BUS ACKNOWLEDGE
MEMORY INTERFACE
AS I/O
ADDRESS STROBE
HDS
HIGH ORDER DATA STROBE
LDS
LOW ORDER DATA STROBE
R
/ W
READ /
WRITE STROBE
WAIT I/O
WAIT
STATUS
STO
~
ST2
STATUS
S / U
SUPERVISOR / USER
PF
PROGRAM FETCH
ADDRESS
/
DATA BUS
A1/D0
~
A16/D15
I/O
ADDRESS
/
DATA BUS
A17
~
A23 I/O
ADDRESS BUS
CLASSIFICATION
PIN MASK I/O
FUNCTION
SERIAL INTERFACE
RXDO
RXD1
1
RECEIVE DATA
(
CHANNEL
0.
1
)
TXDO
TXD1
TRANSMIT DATA
(
CHANNEL
0. 1 )
RXCO
RXC1
I/O
RECEIVE CLOCK
(
CHANNEL
0.
1
)
TXCO
TXC1
1/0
TRANSMIT CLOCK
(
CHANNEL
0.
1 )
RTSO
RTS1
MODEM CONTROL
(
CHANNEL
0.
1)
CTSO
CTS1
I
DCDO
DCD1
I
INTERRUPT CONTROL
NMI
.1
NON MASKABLE INTERRUPT
IRQO. IRQ1
I
INTERRUPT REQUEST
IACK
INTERRUPT ACKNOWLEDGE
DMA
DREQO~
DREQ3
I
DMA REQUEST
(
CHANNEL
~
3
)
DACKO~
DACK3
DMA ACKNOWLEDGE
(
CHANNEL
~
3
)
DONE 1/0
DONE
TIMER TI0A1. TI0B1
TI0A2.
T10B2
I/O
TIMER
I/O
A.
B
(
CHANNEL
1.
2
)
CHIP SELECT PCSO.
PCS1
PROGRAMMABLE CHIP SELECT
45