Serial Commands - Murata Hn-210 Manual

Serial Commands

These commands affect the serial interface between the modem and the host. The
default settings are 9600 bps and protocol mode 0.
Command
sd[?|00..FF]
sp[?|00..14]
Set Data Rate Divisor
Sets the serial bit rate between the modem and the host. This command takes effect
immediately and will require adjusting the host serial rate to agree. Nonstandard rates
may be programmed by entering a data rate divisor computed with the following
formula:
DIVISOR = (230400/RATE)-1
Round all non-integer values down.
Copyright © Murata Manufacturing Co., Ltd. All Rights Reserved. 2004
HN-210/210X 01/13/17
Description
Set Data Rate Divisor
Data Rate Divisor (hex)
1200 bps = BF
2400 bps = 5F
9600 bps = 17
14400 bps = 0F
19200 bps = 0B
28800 bps = 07
38400 bps = 05
57600 bps = 03
115200 bps = 01
Set Protocol Mode
00 = point-to-point transparent mode
01 = basic command and data only
02 = command, data and connection notification
04 = WIT2400 protocol mode
05 – 08 = reserved for future use
09 = mode 01 during transmit, transparent receive
0C = mode 04 during transmit, transparent receive
0D – 10 = reserved for future use
11 = transparent transmit, mode 01 during receive
12 = transparent transmit, mode 02 during receive
14 = transparent transmit, mode 04 during receive
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