User Manual

Confidential
USERS MANUAL
38(42)
Document number Revision
4/198 17-LXE 108 566 Uen PA7
Group Pin No Name Application Requirements App I/O
19
PCMULD Logic output to phone module. O
20 PCMDLD Logic input from phone module.
I
18 PCMSYNC Logic input from phone module. I
PCM
17
PCMCLK Logic input from phone module. I
9 AGND
Analog reference. This signal is an analog reference
output by the phone module. This signal is connected
to GND in one place in the phone module. Under no
circumstances shall it be connected to any ground or
be used as ground in the application.
See 2.4 for more detailed information.
I
10 AUX1(ATMS) Single ended audio output to phone module. O
Analog
Audio
7 AUX0(AFMS) Single ended audio input from phone module. I
12 MODULE_PWR_EN_B
Logic open collector output that is set low by the
application to enable power to the phone module. The
pull-up resistor resides in the phone module.
OOC
2 VREF
Phone module logic voltage sense input to application.
This signal provides the application with the logic
system voltage level used by the phone module.
I
40 RI
This signal is used to indicate to the application of an
incoming voice or data call or SMS. The event is
indicated by the signals falling edge and remains low
for 100 ms.
I
24 RINGER
5
Pulse Modulated logic input from phone module. The
application must provide power amplification if the
current draw is expected to exceed 1mA.
I
Status
15 HW_SD
Bi-directional signal, default set to be an open collector
output from the application.
OOC
I
39 CFMS No termination. Leave open. I
37 CTMS No termination. Leave open. O
36 Reserved No termination. Leave open. IOC
35 Reserved No termination. Leave open. IOC
38 Reserved No termination. Leave open. O
4 IO_4_VRTC No termination. Leave open. I/O
3 IO_3_GPS_FIX No termination. Leave open. I/O
Unused
1 IO_1_TIMEMARK No termination. Leave open. I/O
5
Not currently Implemented in the CM52.