Sony SLV-SE850 Service Manual page 86

5-9. SMART FILE TELETEXT MICROCOMPUTER PIN FUNCTION
(ML-21 Board IC950 SDA5250M-2)
Pin No. Pin Name I/O
1 PSEN O
2 P3.1 O
3 P3.0 O
4 P1.7 O
5 P1.6 O
6 P1.5 O
7 P1.4 O
8 P1.3 O
9 P1.2 O
10 P1.1 O
11 P1.0 O
12 VSS —
13 VDD —
14 XTAL2 O
15 XTAL1 I
16 RST I
17 ALE O
18 A17/P4.0 O
19 A16 O
20 A18/P4.1 O
21 A15 O
22 A14 O
23 A12 O
24 A13 O
25 A7 O
26 A8 O
27 A6 O
28 A9 O
29 A5 O
30 A11 O
31 A4 O
32 A3 O
33 A10 O
34 A2 O
35 A1 O
36 D7 I
37 A0 O
38 D6 I
39 D0 I
40 D5 I
41 D1 I
42 D4 I
43 D2 I
44 D3 I
45 R O
46 G O
47 B O
48 BLAN O
49 COR O
50 VSS —
Function
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Ground
D5V
System clock terminal (6 MHz)
System clock terminal (6 MHz)
Reset signal
Not used
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Data bus
Address bus
Data bus
Data bus
Data bus
Data bus
Data bus
Data bus
Data bus
Not used
Not used
Not used
Not used
Not used
Ground
Pin No. Pin Name
51 VDD
52
53
54 HS/SC
55 VS/P4.7
56 P0.0
57 P0.1
58 P0.2
59 P0.3
60 P0.4
61 P0.5
62 P0.6
63 P0.7
64 P2.3
65 P2.2
66 P2.1
67 P2.0
68 VSSA
69 FIL3
70 FIL1
71 FIL2
72 VDDA
73 IREF
74 CVBS
75 P3.7
76 P3.6
77 P3.5
78 P3.4
79 P3.3
80 P3.2
5-6E
I/O Function
D5V
O Not used
O Not used
I Not used
I Not used
I Serial data signal (SDA)
I Serial clock signal (SCL)
I Fixed at ground
I Fixed at ground
I Fixed at ground
I Fixed at ground
I Fixed at ground
I Fixed at ground
I Fixed at ground
I Fixed at ground
I CS1
I CS0
Ground
I/O PLL roop filter
I/O Not used
I/O Not used
— D5V
I Reference current
I Video signal
O Not used
O Not used
O BUSY signal
I/O Not used
I/O Not used
I Chip select