LG GCC-4242N Service Manual page 28

• Pin Functions
256 241 Pin name
1 1 T2 NOE
2 2 U3 NCE
3 3 T1 FADR0
4 4 R2 FADR1
5 5 T4 FADR2
6 6 R1 FADR3
7 7 P5 FADR4
8 8 - V
DD3
9 9 - V
DD15
10 10 - V
SS
11 11 M4 FADR5
12 12 P1 FADR6
13 13 T3 FADR7
14 14 N2 FADR8
15 15 P4 P7/FADR17
16 16 N1 P8/FADR18
17 17 N4 P17/FADR19
18 18 P3 NWE
19 19 K5 FADR9
20 20 M2 FADR10
21 NC NC _V
DD3
22 21 - V
SS
23 22 L4 FADR11
24 23 M3 FADR12
25 24 M1 FADR13
26 25 K4 FADR14
27 26 L3 MMOD
28 27 K3 FADR15
29 28 L1 DRAMV
30 29 L2 VOUT
31 30 K1 DRAMV
32 31 J1 DRAMV
33 NC NC _V
SS
TxD/EXTRG0/M
34 32 J4 DATA
30
System controller
external connection
NRD(I)
NCS(I)
CPUADR0(I)
CPUADR1(I)
CPUADR2(I)
CPUADR3(I)
CPUADR4(I)
CPUADR5(I)
CPUADR6(I)
CPUADR7(I)
CPUADR8(I)
NINT0(O)
CPUADR17(I)
NWR(I)
CPUADR9(I)
CPUADR10(I)
CPUADR11(I)
CPUADR12(I)
CPUADR13(I)
CPUADR14(I)
CPUADR15(I)
DD15
DD33
SS
I/O Destination
O Flash Read signal output to flash
O Flash Chip select signal output to flash
O Flash Address output to flash
O Flash Address output to flash
O Flash Address output to flash
O Flash Address output to flash
O Flash Address output to flash
Power
supply - V
DD
Power
supply - V
DD
GND V
-
SS
O Flash Address output to flash
O Flash Address output to flash
Flash Address output to flash
O Flash Address output to flash
I/O Flash Address output to general-purpose port/flash
I/O Flash Address output to general-purpose port/flash
I/O Flash Address output to general-purpose port/flash
O Flash Write signal output to flash
O Flash Address output to flash
O Flash Address output to flash
Power
supply - V
DD
GND - V
SS
O Flash Address output to flash
O Flash Address output to flash
O Flash Address output to flash
O Flash Address output to flash
I - Test mode selection signal
O Flash Address output to flash
Power
supply DRAM power supply (1.5 V)
-
Regulator output (1.5 V)
Power
supply - DRAM Power supply(3.3V)
GND V
-
SS
GND - V
SS
I/O Debug Trigger pin for serial transmission/Dwire use
Description
(3.3 V)
(1.5 V)
(3.3V)
for DRAM use