Acer TM7300 Series Service Manual page 94

Table 2-3 NM2160 Pin Descriptions
Number Pin name
136, 154, DVSS
173
105 AVSSM
104 AVSSV
99 AVSSR1
100 AVSSR2
91 AVSSX1
25, 42, 57, HVDD
78
27,62,107 VDD
134, 156, DVDD
175
116, 132, 1, LVDD
8
157 MMVDD
106 AVDDM
103 AVDDV
95 AVDDR1
102 AVDDR2
94 AVDDX1
133 VBB
Major Chips Description
I/O
DRAM ground
Analog ground for MCLK synthesizer
Analog ground for VCLK synthesizer
Analog ground for DAC
Analog ground for DAC current reference
Analog ground for crystal oscillator
Host bus interface VDD.(+5v or +3v) Includes the PCI, VL, CRT,
Power management, External clock pins(PMCLKI and PVCLKI)
and Miscellaneous pins
Logic VDD(+3V only)
DRAM VDD(+3V only)
Panel VDD(+5v or +3v)
ZV Port VDD(+5V /+3V)
Analog VDD for MCLK synthesizer(+3V only)
Analog VDD for VCLK synthesizer(+3V only)
Analog VDD for DAC(+3V only)
Analog VDD for DAC current reference(+3V only)
Analog VDD for crystal oscillator. If external 14 MHz source is
used AVDDX1 can be +5V or +3V based on the XTAL1 clock
source levels
A capacitor across ground to this pin is required. Please refer to
NM2160 system schematics for more details
Description
2-37