SENA Parani-ESD1000 - Manual (Page 51)

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Appendix C: S-Register
S-registers contains 52 parameters for the Parani-ESD. These are stored in flash memory and the
values will be saved unless hardware reset is executed. The value of S-register can be accessed and
changed with ATS command. Some S-registers not shown below are set to maximize the performance
of Parani-ESD. Thus it is not recommended to change these S-registers.
Change the value of S-register only in Standby status. Turn Parani-ESD off and on.
C.1. S1: Force to Reconnect (default 1)
S1=0, Parani-ESD in Mode1 does not try to reconnect when disconnected.
S1=1, Parani-ESD in Mode1 keeps trying to reconnect when disconnected.
C.2. 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
transmitting very small data quickly.
When this value is 1, in order to minimize latency, Parani-ESD sends the received data immediately.
When this value is 0, the Parani-ESD maximizes throughput, the Parani-ESD stores received data for
a short time and sends a large data packet. If the packet length is less than 100 bytes, having latency
being the priority is recommended. If the packet length is more than 100 bytes, having throughput as
the priority is recommended. Also, if you want to use high baud rate, throughput priority will be more
effective. Just for reference, the buffer length for receiving data is 2 Kbytes.
C.3. S4: Enable Remote Name Query (default 1)
S4=0, Parani-ESD will query only the BD address. This speeds up the inquiry process.
S4=1, Parani-ESD will query the BD address, device name and class of device.
When this value is 1, Parani-ESD finds not only BD address but also friendly name. When this value is
0, Parani-ESD finds only BD address. When set to 0 this will make queries much faster. When using
the pairing button, finding friendly name will be omitted automatically.
C.4. S6: Enable Low Power Mode (default 0)
S6=0, deactivate Low Power Mode.
S6=1, activate Low Power Mode.
This value decides whether Parani-ESD works in Low Power Mode or not. When this value is 0,
Parani-ESD works only in active power mode. When this value is 1, Parani-ESD will be in low power
mode to save the power. Therefore, it takes a few seconds to wake the Parani-ESD out of low power
mode.
C.5. S10: Enable Response Message (default 1)
S10=0, Parani-ESD does not send response messages to the host system.
S10=1, Parani-ESD sends response messages to host system.
This value decides whether Parani-ESD sends response messages such as OK, ERROR, CONNECT,
DISCONNECT or not. When this value is 0, Parani-ESD will not send any response messages. If the
response messages conflicts with your host programs or devices that is connected to Parani-ESD,
change this value to 0.
C.6. S11: Enable Escape (default 1)
S11=0, Parani-ESD does not allow escape sequence characters. The operation status of Connect
cannot be changed to Standby. Since the Parani-ESD skips the process of detecting escape