SimCom SIM548C HD V1.01 Hardware Design page 16

SIM548C Hardware Design
CSD:
SMS
FAX
SIM interface
External antenna
Audio features
Serial GSM port and
Debug port
Two serial GPS port
Phonebook management
SIM Application Toolkit
Real time clock
SIM548C_HD_V1.01
Support Packet Switched Broadcast Control Channel (PBCCH)
CSD transmission rates: 2.4, 4.8, 9.6, 14.4 kbps,
non-transparent
Unstructured Supplementary Services Data (USSD) support
MT, MO, CB, Text and PDU mode
SMS storage: SIM card
Group 3 Class 1
Support SIM card: 1.8V ,3V
GSM part: Connected via 50 Ohm antenna connector or antenna
pad
GPS part: Separate GPS antenna connector. Please refer to
figure 33 for details
Speech codec modes:
Half Rate (ETS 06.20)
Full Rate (ETS 06.10)
Enhanced Full Rate (ETS 06.50 / 06.60 / 06.80)
Adaptive multi rate
Echo Cancellation
Serial port: Seven lines on Serial Port Interface
Serial Port can be used for CSD FAX, GPRS service and send
AT command of controlling module.
Serial Port can use multiplexing function
Autobauding supports baud rate from 4800 bps to 115200bps.
Debug Port: Two lines on debug port interface DBG_TXD
and DBG_RXD
Debug Port only used for debugging
Serial Port A: Two lines on Serial Port A, GPS_TXA and
GPS_RXA
Serial Port B: Two lines on Serial Port B, GPS_TXB and
GPS_RXB
Support phonebook types: SM, FD, LD, MC, RC, ON,
ME,BN,VM,LA,DC,SD
Support SAT class 3, GSM 11.14 Release 99
Implemented
16
(AMR)
09.05.2008