Hardware Design V1.00

Smart Machine Smart Decision
SIM2000S_Hardware_Design_V1.00 10 2014-02-27
z EVRC-B(or 4GV)
z Microphone: 8kHz sampling rate,16bit
z Audio AGC
z PCM post processing
z Echo Cancellation
z 8,16 or 32kHz Tx path sampling rate
Serial port and
debug port
Serial port:
z Full modem interface with status and control lines, unbalanced,
asynchronous
z 115200bps
z Can be used for AT commands or data stream
z Support RTS/CTS hardware handshake and software ON/OFF flow control
z Programmable parameters
1. Data size
2. Stop bits
3. Parity
4. Bit rate
5. Selectable clock source
z Command registers that control the broad UART functions such as enable,
disable, and reset of the Tx and/or Rx channel, plus start and stop breaks
Debug port:
z Debug_TXD
z Debug_RXD
z USB_VBUS
z USB_DM
USB interface
z USB_DP
CDMA Protocol
z IS95-A/B: Protocol Between MS & BTS
z IS-96A: Voice Signal Coding
z IS-98A: Base MS Function
z IS-126: Voice Loop-Back
z IS-637: Short Message Service
z IS-707: Data Service
z IS-657: Packet Data
Phone book management Support phonebook types: SM, DC, FD, LD, MC, ME, RC, EN.
RUIM interface Support identity card: 1.8V, 3V
RUIM application toolkit
z Shared interface for RUIM applications, thereby further supporting CDMA
networks
z Selectable clock source
z All RUIM signals can be used to GPIOs; this allows them to be configured
for alternate functions as discussed throughout this chapter
z The associated pads are powered off VREG_RUIM and can be either 1.8 V
or 3 V (nominal)
SMS
z Point to point MO and MT, Text and PDU mode
z Support ASCII and UNICODE
z SMS storage: RUIM card or Module
Timing functions Use AT command set