NEC Barracuda Service Manual page 38

Barracuda PDA Maintenance
GPIO
Function Name
Name
U10-2Q1 AUD_PWR_ON#
U10-2Q2 BL_ON/OFF#
U10-2Q3 IR_EN#
U10-2Q4 QMUTE
U10-2Q5 LED_NOTE
U10-2Q6 BL_ADJ_INC#
U10-2Q7 BL_ADJ_U/D#
U10-2Q8 CODEC_RESET#
U12-1Q1 COM1_DTR#
U12-1Q2 COM1_RTS#
U12-1Q3 COM3_DTR#
U12-1Q4 COM3_RTS#
U12-1Q5 A0VPP
U12-1Q6 A1VPP
U12-1Q7 SLOT0_EN0
U12-1Q8 SLOT0_EN1
U12-2Q1 COM1_RI
U12-2Q2 COM1_CTS#
U12-2Q3 COM1_DCD#
U12-2Q4 COM1_DSR#
U12-2Q5 COM3_RI
U12-2Q6 COM3_CTS#
U12-2Q7 COM3_DCD#
U12-2Q8 COM3_DSR#
Sleep
I/O H/L
mode
Pin active
state
O L L Audio / Amplifier power plane
ON/OFF control
O H/L L Backlight ON(H)/OFF(L) control
O L L IR power ON/OFF control
O H L Mute the audio codec UDA1341
O H L Flash LED ( H=> flash , L => No
light )
O H/L L Backlight adjust data latch
O H/L L Backlight adjust data
O L L Audio chip (UDA1341)reset
O L COM1 signal
O L COM1 signal
O L COM3 signal
O L COM3 signal
O L PCMCIA power switch control
O L PCMCIA power switch control
O L PCMCIA power switch control
O L PCMCIA power switch control
I L COM1 signal
I L COM1 signal
I L COM1 signal
I L COM1 signal
I L COM3 signal
I L COM3 signal
I L COM3 signal
I L COM3 signal
Description
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