User's Manual

Interface Specification Document Rev. -
Cellular Radio Module CRM4250/4200
Company Confidential
Standard Communications Corp. -15- November 20, 2000
55H Command Self test result.
This message is sent in response to the Run Self Test command. The data provided
is a simple pass-fail indication of the test result.
Direction: Radio to host
Syntax: | SOF | LEN | 55H | aa | FCS |
Where: aa = 1 byte of result data.. 0 = pass, 1 = fail
ACK required: YES
56H Command Initialize Radio Mode.
This command is used to select the operating mode of the radio. The appropriate
value/bit is set in the data word to identify the selected mode.
Direction: Host to radio
Radio Mode: All
Syntax: | SOF | LEN | 56H | aa | FCS |
Where: aa = 02H CDPD mode
= 04H AMPS data mode
= 10H AMPS voice mode
ACK required: YES
57H Command Software Revision Query (ENQ)
Direction: Host to radio
Mode: All
Syntax: | SOF | LEN | 57H | FCS |
Usage: The polling message is used to determine the firmware
revision of the radio.
ACK required: YES