NHI15302RT Datasheet | National Hybrid

FEATURES . . . . GENERAL FEATURES . . REMOTE TERMINAL HIGHLIGHTS . BLOCK DIAGRAM . . . PROTOCOL CHIP DESCRIPTION . HOST BUS INTERFACE UNIT . . I/O BUS INTERFACE UNIT . . INTERRUPT CONTROL UNIT . . ICU REGISTERS . . . INTERRUPT DEFINITION TABLE . ICU FIFO . . . . DUAL REDUNDANT FRONT END . MANCHESTER DECODER . . MANCHESTER ENCODER . . GAP COUNTER . . . RT - RT NO RESPONSE COUNTER . MINIMUM RESPONSE TIME COUNTER FAIL -SAFE TIMEOUT COUNTER . MESSAGE PROCESSOR UNIT . RT HARDWIRE TERMINAL ADDRESS- - - - - - - - - - - - - - - - - - - - - - - - . . 4 4 4 4 4 5 6 6 7 7 7 7 7 8 8 8 9 9 9 9 9 9 9 10 10 12 12 13 14 15 15 15 15 16 16 18 18 18 18 18 18 19 19 19 19 20 20 20 21 DATA STRUCTURE . . . . ADDRESS MAP . . . . INTERNAL REGISTERS . . . CONTROL - POINTER TABLE ADDRESS . . . BASIC STATUS . . . ....