Korg A4 - DSP Pin Assignments and Functions

TMS57002
(DSP)
PIN
ASSIGNMENT
J®
TMS57002
O
oO
25,
O'
24
TMS57002
(DSP)
PIN
FUNCTION
PIN
NAME
I/O FUNCTION
VCC1, VCC2
—
+5V supply
pins
VSSl,
VSS2
—
Ground pins
CLKIN
I
Systei clock
input
SYNC
I
Systen
synchronization
signal
SYPOL
1 Polarity selct
of
SYNC active edge
SIO, SI1
I
S-port data
receive
input
pins
S00, SOI
0
S-port
data transmit output pins
BCKI
i
Bit clock for Input S-ports
BCKO I
Bit
clock for Output S-ports
LRCKI I
L/R
channel indication signal
for
Input
S-
ports
LRCKO
I L/R
channel
indication
signal for Output
S-ports
D(7-0)
I/O
8b it data input
and output
of
P-port
STRB
I Data
Strobe
input for P-port
IR
I Write control
signal
input for
P-port
EMPTY
0 Indicate P-port
input
buffer
eapty condition
CS
I
Chip select
for P-port enable
PLOAD
I
Prograa data load control signal for
P-port
CLOAD
I
Coefficient
data
background
update
request
BIO
!
I Branch control signal
MUTE
!
I
Mute serial
port
signal
OVFM
0 Overflow detect signal on
nultiplier
accunulator
OVFA 0
Overflow detect signal on
ALU
accunulator
RS I
Hardware reset
signal
PCO
0
Output
Progran
Counter
0 state for
sync
clock
CLKSEL
I Select signal
of
clock
rate
TEST
(0-4)
I Device test
control signals
RES
1
Reserved
for future external
DRAM interface
i
20