Sony Ericsson CM-42, Руководство интегратора

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CM-42 Technical Description PAGE 22 OF 38
SEM/CX-02:0076/DES A
Group Pin No Name Application Requirements App I/O
19 PCMDLD Logic input from phone module. I
20 PCMULD Logic output to phone module. O
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 ATMS Single ended audio output to phone module. O
Analog
Audio
7 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 call (voice, data, etc.). A falling edge
indicates incoming call. The signal remains low for
one second, then high for three seconds. This is
repeated until call is answered or dropped.
I
24 RINGER
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 SCL_SPI_CLK No termination. Leave open. IOC
35 SDA_SPI_IN No termination. Leave open. IOC
38 SPI_OUT No termination. Leave open. O
4 IO_4_VRTC No termination. Leave open. I/O
3 IO_3 No termination. Leave open. I/O
Unused
1 IO_1_TIMEMARK No termination. Leave open. I/O
13 RESERVED No termination. Leave open. I
16 RESERVED No termination. Leave open. O
11 RESERVED No termination. Leave open. O
Reserved
14 RESERVED No termination. Leave open. I
Table 15: Pin Direction for General Purpose Signals