Sony SDP-EP70 Service Manual page 53

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