; ; This file defines the DR11-C device registers ; STRUCT DR11C ; Define layout of device registers ; F CSR,W ; Control and status register F OUTBUF,W ; Output buffer register F INBUF,W ; Input buffer register E ; ; Define CSR bit fields ; STRUCT DR11C_CSR ; Define bits in DR11-C CSR ; V < CSR0,,,M ; CSR bit zero - commands external device CSR1,,,M ; CSR bit one - commands external device ,3,,M ; Three unused bits IE_B,,,M ; Interrupt enable B IE_A,,,M ; Interrupt enable A REQ_A,,,M ; Interrupt request A ,7,,M ; Seven unused bits REQ_B,,,M ; Interrupt request B > E