Four Channel, Serial (RS232/422/485) (Module P8) /Isolated RS-422/RS-485 (Module PC)68C3 Operations Manual North Atlantic Industries, Inc. 12/19/2014Rev: 2014-12-19-0947 www.naii.com Page 92 of 330Number of Words Rx BufferType: unsigned integer wordRange: 0 to 32767Read/Write: RInitialized Value: 0This register contains the number of words in the Rx Buffer.REGISTER D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 FUNCTIONNUM WORDS RX BUFFER D D D D D D D D D D D D D D D D D=DATA BITProtocolType: unsigned integer wordRange: not applicableRead/Write: WInitialized Value: 0, AsynchronousThis register is used to configure the associated channel for either asynchronous, mono-synchronous, bi-synchronous, or HDLC mode.REGISTER D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 FUNCTIONPROTOCOL 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ASYNC0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 MONO-SYNC0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 BI-SYNC0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 HDLCClock ModeType: unsigned integer wordRange: not applicableRead/Write: WInitialized Value: 0This register configures for internal (driven) or external (received) transmit/receive clocks. Applicable only forSync or HDLC.REGISTER D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 FUNCTIONCLOCK MODE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Internal0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 External0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 INVERT Tx Clock10 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 INVERT Rx Clock11Functionality added DOM 1/1/2013 and later
