PS-SAU-1900E
Mar. 8
th
,1999 (Rev. 0.0)
--- CONFIDENTIAL AND PROPRIETARY ---
19
The CDMA I/O points are as follows.
Pin No.
Signal Name(Function)
Signal Description
1
GND(Ground)
Ground to +5V.
2
GND(Ground)
Ground to +5V.
3
+5V(+5Volts)
+5Volts main power supply for CDMA board.
4
+5V(+5Volts)
+5Volts main power supply for CDMA board.
5
+5V(+5Volts)
+5Volts main power supply for CDMA board.
6
+5V(+5Volts)
+5Volts main power supply for CDMA board.
7
AUX_PCM_DOUT
MSM terminal 138 AUX_PCM_DOUT, Not used with
SAU-1900E
8
AUX_PCM_CLK
MSM terminal 142 AUX_PCM_CLK, Not used with SAU-
1900E
9
AUX_PCM_DIN)
MSM terminal 139 AUX_PCM_DIN, Not used with SAU-
1900E
10
AUX_PCM_SYNC.
MSM terminal 140, Not used with SAU-1900E
11
+3.3V(+3.3V_D)
+3.3Volts output from CDMA Module.
Can drive up to 15mA for digital circuits.
12
GPIO9(GPIO9)
General GPIO9, tied to Analog Fax Module.
Function is not defined yet.
13 KEYSENSE0(OFF_HOOK_IN
T(3.3V))
Keysense0 line, used to detect OFF_HOOK status.
1= On Hook, 0=Off Hook.
14
KEYSENSE1(DTMF_DV)
Keysense1 line, used to detect Valid DTMF signal.
1= Invalid, 0=Valid.
15
U20_X2(MAIN_TEMP)
A/D input for Main board(battery) temperature sensor.
16
KEYSENSE2(DTMF_D1)
Keysense2 line, used to detect DTMF digit in
conjunction of KEYSENSE3(D2), GPIO1(D4),
GPIO5(D8).
17
KEYSENSE3(DTMF_D2)
Keysense3 line, used to detect DTMF digit in
conjunction of KEYSENSE2(D1), GPIO1(D4),
GPIO5(D8).
18
U20_X0(AC_MONI)
A/D input for AC power status monitor
19
U20_X3(V_BATT)
A/D input for Battery voltage level.
20
GPIO1(DTMF_D4)
General GPIO1, used to detect DTMF digit in
conjunction of KEYSENSE2(D1), KEYSENSE3(D2),
GPIO5(D8).
21
GPIOI2(EXP_STR)
General GPIO2, used to drive MC14094 port expander
STR line in conjunction of GPIO3(EXP_CLK) and
GPIO4(EXP_DATA).
22
GPIO3(EXP_CLK)
General GPIO3, used to drive MC14094 port expander
CLK line in conjunction of GPIO2(EXP_STR) and
GPIO4(EXP_DATA).
23
GPIO4(EXP_DATA)
General GPIO4, used to drive MC14094 port expander
DATA line in conjunction of GPIO2(EXP_STR) and
GPIO3(EXP_CLK).
24
GPIO0(RING_BURST)
General GPIO0, used to generate ring signal(20Hz
Square wave).
25
TMS(JTAG_TMS)
One of the JTAG line.
26
GPIO5(DTMF_D8)
General GPIO5, used to detect DTMF digit in
conjunction of KEYSENSE2(D1), KEYSENSE3(D2),
