Read Sony SDP-EP70 / SDP-EP90ES Service Manual online
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Pin No.
Pin Name
I/O
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
External clock crystal input
Power supply for interrupt/mode control
Ground for interrupt/mode control
Host address data input
Ground for Host
Host address data input
Host Acknowledge input
Power supply for Host block
Host enable input
Ground for Host block
Host read/write input
Host request output
Host data bus input/output
Ground for Host block
Host data bus input/output
Power supply for Host block
Host data bus input/output
Ground for Host block
Host data bus input/output
Receive data input
Transmit data output
Ground for SCI and SSI block
SCI serial clock input/output
Serial clock zero input/output
Power supply for SCI and SSI block
SSI serial clock input/output
Serial control 1 input/output
SSI transmit data output
Ground for SCI and SSI block
Serial control 2 input/output
Ground for interrupt/mode control
Power supply for interrupt/mode control
SSI receive data input
Timer/event counter module input/output
Not used
Bus needed (Not used)
Bus wait input (Fixed at “H”)
Bus grant output (Not used)
Bus request input (Fixed at “H”)
Power supply for bus control
EXTAL
VCCQ
GNDQ
HA2/PB10
GNDH
HA1/PB9
HA0/PB8
HACK/PB14
VCCH
HEN/PB12
GNDH
HR/W/PB11
HREQ/PB13
H7/PB7
H6/PB6
GNDH
H5/PB5
H4/PB4
H3/PB3
VCCH
H2/PB2
GNDH
H1/PB1
H0/PB0
RXD/PC0
TXD/PC1
GNDS
SCLK/PC2
SC0/PC3
VCCS
SCK/PC6
SC2/PC5
STD/PC8
GNDS
SC1/PC4
GNDQ
VCCQ
SRD/PC7
TIO
NC
BN
WT
BG
BR
VCCC
I
–
–
I
–
I
I
I
–
I
–
I
O
I/O
I/O
–
I/O
I/O
I/O
–
I/O
–
I/O
I/O
I
O
–
I/O
I/O
–
I/O
I/O
O
–
I/O
–
–
I
I/O
–
O
I
O
I
–
• IC1002 Digital Signal Processor (DSP56002FC66)
• Abbreviation
SCI : Serial Communication Interface
SSI : Synchronous Serial Interface
SSI : Synchronous Serial Interface
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