Service manual

8224 N/B Maintenance
8224 N/B Maintenance
50
Pin Name Pin No. 915 Pin Definitions I/O Hi/Low Function
GP27/PWM3 70 O
GP30 102 KEY IN 0 I Pull High Key matrix input 0
GP31 101 KEY IN 1 I Pull High Key matrix input 1
GP32 100 KEY IN 2 I Pull High Key matrix input 2
GP33 99 KEY IN 3 I Pull High Key matrix input 3
GP34 98 KEY IN 4 I Pull High Key matrix input 4
GP35 97 KEY IN 5 I Pull High Key matrix input 5
GP36 96 KEY IN 6 I Pull High Key matrix input 6
GP37 95 KEY IN 7 I Pull High Key matrix input 7
GP40/FAN_TACH0 68 FAN_SPEED I Fan speed input
GP41/FAN_TACH1 67
GP42/RXD 66 KBC_RX I For firmware debug (
请留焊点
)
GP43/TXD 65 KBC_TX O For firmware debug (
请留焊点
)
GP44/KBRST# 64 HRCIN# O CPU Reset
GP45/GATE_A20 63 A20GATE O System A20 Gate
GP46/CLKRUN# 62 PCLKRUN# LPC Clock Run
GP47/LPCPD# 61 LPCPD LPC Power-Down
GP50 121 EXTSMI# O External SMI#
GP51 120 H8_SCI Need invert to SCI# sending to SouthBridge
GP52 119 H8_WAKE_IP# O Wake-up SouthBridge at ACPI mode
GP53 118 H8_THRM# O Thermal throttling control to SouthBridge
GP54 117 O
Port 3
Port 4
Port 5
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1.6 Appendix 2: W83L951DG GPIO Pins Definitions (2)
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