Acer TM7100 Series Service Manual page 95

Table 2-3 NM2160 Pin Descriptions
Pin name Number
110 VGADIS
11 DDC2BD
12 DDC2BC
Power pins
10, 29, 44, VSSP
59, 80, 114,
125, 138,
153
23, 64, 109, GND
88
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
I/O
I
VGA Disable This pin when active disables all the accesses to
the NM2160 controller, but maintains all the screen refreshes.
GR12 bit-4 enables/disables this feature.
NOTE: When driven by an external source, the swing on this pin
should not be above LVDD
I/O DDC Data pin
O/D
I/O DDC Clock pin
O/D
Host bus interface ground, ZV interface ground and Panel
Interface ground
Logic ground
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