Samsung SF-830 Service Manual page 122

3-2-3 RISC MICROPROCESSOR
1) RISC MICROPROCESSOR PIN & INTERFACE
No Pin Name
1 DATA0
2 DATA1
3 DATA2
4 DATA3
5 Vsso
6 DATA4
7 Vddo
8 DATA5
9 DATA6
10 DATA7
11 DATA8
12 Vssi
13 DATA9
14 Vddi
15 DATA10
16 DATA11
17 DATA12
18 DATA13
19 Vsso
20 DATA14
21 DATA15
22 DATA16
23 DATA17
24 Vsso
25 DATA18
26 DATA19
27 DATA20
28 DATA21
29 Vddi
30 DATA22
Samsung Electronics
I/O Reset Value
I/O Input
I/O "
I/O "
I/O "
Vss -
I/O Input
Vdd -
I/O Input
I/O "
I/O "
I/O "
Vss -
I/O Input
Vdd
I/O Input
I/O "
I/O "
I/O "
Vss -
I/O Input
I/O "
I/O "
I/O "
Vss -
I/O Input
I/O "
I/O "
I/O "
Vdd -
I/O Input
CIRCUIT DESCRIPTION
Description
CPU Data Bus 0 PHBTT8, 8 mA
CPU Data Bus 1
CPU Data Bus 2
CPU Data Bus 3
5 V Gnd
CPU Data Bus 4 PHBTT8, 8 mA
5 V
CPU Data Bus 5 PHBTT8, 8 mA
CPU Data Bus 6
CPU Data Bus 7
CPU Data Bus 8
3.3 V Gnd
CPU Data Bus 9 PHBTT8, 8 mA
3.3 V
CPU Data Bus 10 PHBTT8, 8 mA
CPU Data Bus 11
CPU Data Bus 12
CPU Data Bus 13
5 V Gnd
CPU Data Bus 14 PHBTT8, 8 mA
CPU Data Bus 15
CPU Data Bus 16
CPU Data Bus 17
5 V Gnd
CPU Data Bus 18 PHBTT8, 8 mA
CPU Data Bus 19
CPU Data Bus 20
CPU Data Bus 21
3.3 V
CPU Data Bus 22 PHBTT8, 8 mA
PAD
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Repair Manual
3-3