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