JVC PD-35B50BJ Service Manual page 14

2.3.2 MAIN CPU [IC7501] PIN FUNCTION
Pin No. Terminal name
1 TCK
2 TMS
3 TDI
4 TDO
5 NC
6 OSDB0
7 OSDB1
8 OSDB2
9 OSDB3
10 OSDB4
11 TV-LINK
12 RX_BUSY(Sirial)
13 VSS33
14 VDD33
15 TV_LINK_OUT
16 A20
17 A19
18 A18
19 A17
20 VSS25
21 VDD25
22 A16
23 A8
24 A7
25 A9
26 A6
27 A5
28 A10
29 A11
30 A12
31 VSS33
32 VDD33
33 A4
34 A3
35 A2
36 A1
37 A0
38 A13
39 A14/RAS
40 A15/CAS
41 VSS33
42 VDD33
43 MEMCLK
44 CSSDRAM
45 CLKEN
46 CSROM
47 RD
48 UDQM
49 LDQM
50 WR
51 D15
52 VSS33
53 VDD33
54 D7
55 D0
56 D14
57 D8
58 D6
59 D1
60 VSS33
61 VDD33
62 D13
63 D9
64 D5
65 D2
1-10 (No.YA098)
Port name I/O
TCK I
TMS I
TDI I
TDO O
P2.8 O
P2.9 O
P2.10 O
P2.11 O
P2.12 O
P2.13 O
P2.14 I
P2.15 O
VSS33 -
VDD33 I
P4.5/CS3 O
P4.4/A20 O
P4.3/A19 O
P4.2/A18 O
P4.1/A17 O
VSS25 -
VDD25 I
P4.0/A16 O
A8 O
A7 O
A9 O
A6 O
A5 O
A10 O
A11 O
A12 O
VSS33 -
VDD33 I
A4 O
A3 O
A2 O
A1 O
A0 O
A13 O
A14/RAS O
A15/CAS O
VSS33 -
VDD33 I
MEMCLK O
CSSDRAM O
CLKEN O
CSROM O
RD O
UDQM O
LDQM O
WR O
D15 I/O
VSS33 -
VDD33 I
D7 I/O
D0 I/O
D14 I/O
D8 I/O
D6 I/O
D1 I/O
VSS33 -
VDD33 I
D13 I/O
D9 I/O
D5 I/O
D2 I/O
Test purpose
Test purpose
Test purpose
Test purpose
Not used
Bule for OSD
Bule for OSD
Bule for OSD
Bule for OSD
Bule for OSD
TV-LINK communication
Communication for chassis CPU (Request)
GND
3.3V
TV-LINK communication
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
GND
2.5V
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
GND
3.3V
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
Memory (Program ROM) address
GND
3.3V
Clock for memory
Chip select for memory
Clock enable for memory
Chip select for memory
Read for memory
Control IN / OUT buffer of memory
Control IN / OUT buffer of memory
Write for memory
Data (Program ROM)
GND
3.3V
Data (Program ROM)
Data (Program ROM)
Data (Program ROM)
Data (Program ROM)
Data (Program ROM)
Data (Program ROM)
GND
3.3V
Data (Program ROM)
Data (Program ROM)
Data (Program ROM)
Data (Program ROM)
Remark