User Manual

Smart Machine Smart Decision
SIM7100_Hardware_Design_V1.02 2015-06-16
Table 13: Amphenol USIM Socket Pin Description
Pin Signal Description
C1
USIM_VDD
USIM Card Power supply.
C2 USIM_RST USIM Card Reset.
C3 USIM_CLK USIM Card Clock.
C5
GND
Connect to
GND.
C6
VPP
C7
USIM_DATA
USIM Card data I/O.
3.6 PCM Interface
SIM7100 provides a PCM interface for external codec, which can be used in master mode with
short sync and 16 bits linear format.
Table 14: PCM Format
Note: For more details about PCM AT commands, please refer to document [1].
3.6.1 PCM timing
SIM7100 supports 2.048 MHz PCM data and sync timing for 16 bits linear format codec.
Figure 23: PCM_SYNC timing
Characteristics Specification
Line Interface Format Linear(Fixed)
Data length 16bits(Fixed)
PCM Clock/Sync Source Master Mode(Fixed)
PCM Clock Rate
2048 KHz (Fixed)
PCM Sync Format Short sync(Fixed)
Data Ordering MSB