S-register – SENA Promi-SD 205 User Manual
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Promi-SD User Manual – Appendix. B S-Register
B-2
Copyright © 2006 Sena Technologies, Inc. All rights reserved.
S-Register
S-registers contain 46 parameters of Promi-SD. These are stored in flash memory and sustained the values unless
hardware reset is executed. The value of S-register can be accessed and changed with ATS command by user. Some
S-registers not shown below are set to maximize the performance of Promi-SD. Thus it is not recommended to change
these S-registers.
Change the value of S-register only in Standby status.
S1: Force to Reconnect (default 1)
S1=0, Promi -SD in Mode1 does not try reconnection when disconnected.
S1=1, Promi -SD in Mode1 keeps trying reconnection when disconnected.
S3: Stream UART Policy (default 0)
S3=0, the priority of UART streaming is throughput.
S3=1, the priority is latency, which minimizes the delay of data transmission. This is useful in case of transmiting very small
data quickly.
S4: Enable Remote Name Query (default 1)
S4=0, Promi -SD inquires only BD address. This speeds up the inquiry process.
S4=1, Promi -SD inquire BD address, device name and class of device.
S10: Enable SD Response (default 1)
S10=0, Promi -SD does not send SD responses to host system.
S10=1, Promi -SD send SD responses to host system.
S11: Enable Escape (default 1)
S11=0, Promi-SD does not allow escape sequence character. The operation status of Connect cannot be changed to
Standby. As Promi-SD skips the process detecting escape sequence character, the more efficient data transmission is
expected.
S11=1, Promi -SD allow escape sequence character. Whenever it is needed, the Connect status can be changed to
Standby.
S12: Clear Data Buffer When Disconnected (default 0)
S12=0, Promi -SD does not clear the data buffer received from host system when disconnected.
S12=1, Promi -SD clears the data buffer when disconnected.
S14: Enable DTR Transfer (default 1, SD202/205 only)
S14=0, DTR/DSR signal is transferred to loop-back.
S14=1, DTR signal is transferred to DSR of remote device.
S15: Enable Disconnect by DTR (default 0, SD202/205 only)
S15=0, DTR signal cannot release the connection.
S15=1, The connection can be released when DTR signal is off.
S24: Maximum Number of Inquiry Result (default 10)
The maximum number of inquiry list can be controlled.