LG GSA-4167B Service Manual page 63

Audio Interface Pin List
Pin Name Pin No.
DOUT 109
ROUT 98
LOUT 100
Clock Generator Pin List
Pin Name Pin No.
FEMCK 119
XCO 106
XCI 107
H8S Micro-Processor Pin List
CPU
Pin Name
ICUIN7(ACTFLG)
ICUIN6(EJECTSW)
ICUIN8(LOADIN)
GPIO07(HEATRUN)
GPIO06(CSEL)
GPIO04(A0)
GPIO05(UCS1B)
Flash/SRAM Pin List
Pin Name Pin No.
UCS0B 15
CPWRB 40
CPRDB 14
A[20:1] 39,43,44,
215,29,30,
33,34,35,
36,37,38,
45,46,47,
48,49,50,
55,16
CPU[15:1] 216,3,4,
5,9,10,
12,13,25,
24,23,21,
20,19,18
17
67
I/O destination
IO ATAPI
AO ATAPI
I/O destination
O AFE
O X'tal
I X'tal
Pin No. I/O destination Function
205 IU DRVR
206 I Eject Switch CPU interrupt port INT6: EJECTSW interrupt request
207 IO Load Switch CPU general port1-1 also connected to the CPU interrupt
96 5IO ATAPI
97 5IO ATAPI
208 IO SRAM
56 IO SRAM
I/O destination
O Flash
O Flash / SRAM H8S / WRB
O Flash / SRAM H8S / RDB
O Flash / SRAM H8S / A[20:1]
IO Flash / SRAM H8S / D[15:0]
Function
Digital output pin,also functions as the CPU general port 1-2
Audio Lch & Rch output
Function
Front End LSI clock
Crystal oscillation 33.8688MHz
Crystal oscillation 33.8688MHz
CPU interrupt port INT7: Pick up protect flag
port INT8: Loader in sensor
CPU general port 0-7 :Off heat run test input
CPU general port 0-6 ATAPI CSEL
CPU general port 0-4, also functions as H8S / A0
CPU general port 0-5, also functions as H8S / CS1
Function
H8S / CS0
CPU[0] can also function as the CPU general port 0-4
(multiplexed).