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Cat' Message First Direction Instr' Body Partner Function
Mnemonic Avail' Code Length (optional)
P300H P300 Series Modem Installation and Operating Handbook Page 200
11 CommsPing V1.37 to unit 63 0 (ack) Query Used to test comms integrity, and general acknowledge for many commands
which do not directly request a response
11 Ack (original) V0.61 from unit 0 General Ack to Acknowledge
many messages
11 Ack (extended) V0.61 from unit 1
Note: Instruction codes used for SA-bus messages are as specified above + 30H. SA-bus instructions 70-7F are not used
* Note on `First Available` column
Items marked have been available since the version specified, but only in specific builds, there are different builds of the code as follows:
Build Name Filename Marked message available ? Comments
P440 build P440Vxxx No Build applicable only to Q460 board (ID_Dig=0) with Xilinx IFU (ID_IFU=0) and 4M code storage (Boot_Code will be V1.x for 4M)
P460 build P460Vxxx No Build applicable only to Q460 board (ID_Dig=0) with ASIC IFU (ID_IFU=1 or 2) and 4M code storage (Boot_Code will be V1.x for 4M)
P480 build P480Vxxx Yes Build applicable to all Q480 boards (ID_Dig=1, all of which have 8M code storage) with any IFU, OR a Q460 board (ID_Dig=0) modified to have
8M code storage (Boot_Code will be V2.x for 8M) fitted with any IFU
P300 build P300vxxx Yes Build applicable to all P300's