LG GSA-4163B Service Manual page 60

1.4.8 H8S Micro-Processor Pin List
(a) CPU
Pin Name Pin No.
HEATRUN 15
CSEL 16
AMUTE 17
CSW3 20
CSW2 21
CSW1 22
EEPRCE 24
SCO 25
SCI 26
SCK 28
LIMIT 29
LOADOUT 33
LOADIN 34
EJECTSW 36
ACTFLG 37
DRVEN1 38
DRVEN2 40
ACTRST 41
SLEEPHD 42
STNBYON 43
LEDG 44
DSLADJ1 45
DSLADJ2 46
ARSTB 47
FMSW 48
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I/O Destination
IO ATAPI
IO ATAPI
IO Audio Mute ckt
IO
IO
IO
IO EEPROM
O EEPROM
I EEPROM
O EEPROM
IO Slider Limit Switch
IO Load Switch
IO Load Switch
IO Eject Switch
IU DRVR
IO DRVR
IO DRVR
IO DRVR
IO PU
IO PU
IO LED
IO Analog Switch
IO Analog Switch
IO AFE
IO PU
Function
CPU general port 1- 0: Off heat run test input
CPU general port 1- 6: ATAPI CSEL
CPU general port 0- 2: Audio mute
CPU general port 1- 7: Cartridge detect signal 3
CPU general port 0- 0: Cartridge detect signal 2
CPU general port 0- 1: Cartridge detect signal 1
CPU general port 1- 5: EEPROM chip select
CPU dedicated port (SCI) : Serial data output
CPU dedicated port (SCI) : Serial data input
CPU dedicated port (SCI) : Serial clock output
CPU general port 2- 7: Slider inner track limit SW
CPU general port 2- 6: Loader out sensor
CPU general port 2- 5 (also connected to the CPU
interrupt port INT8) : Loader in sensor
CPU interrupt port INT6: EJECTSW interrupt request
CPU interrupt port INT7: Pick up protect flag
CPU general port 0- 7: 6ch driver control 1
CPU general port 0- 6: 6ch driver control 2
CPU general port 0- 5: Pick up protect reset
CPU general port 0- 4: LDD Sleep control
CPU general port 2- 4: Wake Up signal
CPU general port 1- 4: LED (green) on
CPU general port 1- 2: AFE ADJ output 1
CPU general port 1- 1: AFE ADJ output 2
CPU general port 0- 3: AFE MRSTB output
CPU general port 1- 3: Front monitor