LG GCC-4242N, Service Manual

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31
256 241 Pin name
System controller
external connection
I/O Destination Description
35 33 J2 SCLOCK I/O Debug Clock pin for Dwire use
36 34 J3 NRST I - Reset input
37 35 H1 SDATA I/O Debug Data pin for Dwire use
38 36 G3
RxD/EXTRG1/M
CLOCK
I/O Debug Trigger pin for serial reception/Dwire use
39 37 H2 P2/EXINT0 NINT1(O) I/O Misc General-purpose port/External pin interrupt
40 38 J5 P3/EXINT1 NINT2(O) I/O Misc General-purpose port/External pin interrupt
41 39 H3 P4/EXCNT0 WAITODC(O) I/O Misc General-purpose port/External pin count
42 40 G5 P5/EXCNT1 CLKOUT(O) I/O Misc General-purpose port/External pin count
43 41 F1 P6/NSPCCS NMRST(O) I/O Misc CS for general-purpose port/SPC use
44 NC NC _V
SS
GND - V
SS
45 42 F3 DRV4 I/O Misc General-purpose port
46 43 G1 DRV5 I/O Misc General-purpose port
47 44 E3 DRV6 I/O Misc General-purpose port
48 45 G2 DRV7 I/O Misc General-purpose port
49 46 - V
DD3
Power
supply - V
DD
(3.3 V)
50 47 H4 MDQ0 I/O DRAM SDRAM data
51 48 E6 MDQ15 I/O DRAM SDRAM data
52 49 G4 MDQ1 I/O DRAM SDRAM data
53 50 D3 MDQ14 I/O DRAM SDRAM data
54 51 F2 MDQ2 I/O DRAM SDRAM data
55 52 C3 MDQ13 I/O DRAM SDRAM data
56 53 E1 MDQ3 I/O DRAM SDRAM data
57 54 C4 MDQ12 I/O DRAM SDRAM data
58 55 E2 MDQ4 I/O DRAM SDRAM data
59 56 - V
DD3
Power
supply - V
DD
(3.3 V)
60 57 - V
SS
GND - V
SS
61 58 C2 MDQ11 I/O DRAM SDRAM data
62 59 D1 MDQ5 I/O DRAM SDRAM data
63 60 D2 MDQ10 I/O DRAM SDRAM data
64 NC NC 0
65 NC NC 0
66 61 B3 MDQ6 I/O DRAM SDRAM data
67 62 A3 MDQ9 I/O DRAM SDRAM data
68 63 B4 MDQ7 I/O DRAM SDRAM data
69 64 - V
DD3
Power
supply - V
DD
(3.3 V)
70 NC NC _V
DD15
Power
supply
-
V
DD
(1.5 V)