Billion Electric Co. Ltd. BIL-SIM7100C Benutzerhandbuch
Smart Machine Smart Decision
SIM7100C_User Manual_V1.01
2015-09-19
37
Figure 19: Amphenol SIM card socket
Table 17: Amphenol USIM socket pin description
Pin
Signal
Description
C1
USIM_VDD
SIM Card Power supply, it can identify automatically the SIM Card
power mode，one is 3.0V±10%, another is 1.8V±10%.
power mode，one is 3.0V±10%, another is 1.8V±10%.
C2
USIM_RST
SIM Card Reset.
C3
USIM_CLK
SIM Card Clock.
C5
GND
Connect to GND.
C6
VPP
C7
USIM_DATA
SIM Card data I/O.
3.6 PCM Interface
SIM7100C provides hardware PCM interface for external codec. The PCM interface enables
communication with an external codec to support hands-free applications. SIM7100C PCM interface can
be used in two modes: the default mode is auxiliary PCM (8 KHz long sync mode at 128 KHz PCM CLK);
the other mode is primary PCM (8 KHz short sync mode at 2048 KHz PCM CLK). In short-sync
(primary PCM) mode, SIM7100C can be a master or a slave. In long-sync (auxiliary PCM) mode,
SIM7100C is always a master. SIM7100C also supports 3 kinds of coding formats: 8 bits (
communication with an external codec to support hands-free applications. SIM7100C PCM interface can
be used in two modes: the default mode is auxiliary PCM (8 KHz long sync mode at 128 KHz PCM CLK);
the other mode is primary PCM (8 KHz short sync mode at 2048 KHz PCM CLK). In short-sync
(primary PCM) mode, SIM7100C can be a master or a slave. In long-sync (auxiliary PCM) mode,
SIM7100C is always a master. SIM7100C also supports 3 kinds of coding formats: 8 bits (
-law or A-law)