Service manual

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8258I N/B Maintenance
8258I N/B Maintenance
1.6 Appendix W83L951DG KBC GPIO Pins Definitions-1
Pin Name Pin 951 Pin Definitions I/O Function 8258I
RESET# 50 RESET# I 951 Chip Reset
TEST# 124 TEST# I Normal operation by direct external rom
XIN 122 System Clock I Crystal use 24 MHZ
XOUT 123 System Clock I Crystal use 24 MHZ
XCIN 125 RTC Clock I Crystal use 32.768 KHZ
XCOUT 126 RTC Clock I Crystal use 32.768 KHZ
VCC1 23 I +3.3 V
GND 32 I Gro u n d
VCC2 60 I Please connect it to +3.3 V from LPC interface
VCC1 49 I +3.3 V
GND 55 I Gro u n d
VCC1 78 I +3.3 V
GND 69 I Gro u n d
AVCC 112 I Analog Power
AVref 103 I Analog reference voltage
AGND 115 I Analog Ground
LAD3 59 LPC_AD3 I/O LPC Address/Data I/O 3
LAD2 58 LPC_AD2 I/O LPC Address/Data I/O 2
LAD1 57 LPC_AD1 I/O LPC Address/Data I/O 1
LAD0 56 LPC_AD0 I/O LPC Address/Data I/O 0
SERIRQ 54 SERIRQ Serial Host Interrupt
LRESET# 53 LPC_RESET# LPC Reset
LFRAME# 52 LPC_FRAME# LPC Frame
LCKL 51 PCICLK LPC Clock
GP00 94 KB OUT 0 O Key matrix scan output 0
GP01 93 KB OUT 1 O Key matrix scan output 1
LPC Interface
Port 0
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