IBM ECS-320A - page 54

SERIAL INTERFACE DEVELOPERS GUIDE
UWord16 MarAMemAcc; /* Map to 0x4XA0 */
UWord16 MarAMemAccInc; /* Map to 0x4XA1 */
UWord16 MarAMemAccClr; /* Map to 0x4XA2 */
UWord16 MarAMemAccClrInc; /* Map to 0x4XA3 */
UWord16 MarAMemAccMsb; /* Map to 0x4XA4 */
UWord16 MarAMemAccMsbInc; /* Map to 0x4XA5 */
UWord16 MarAMemAccMsbClr; /* Map to 0x4XA6 */
UWord16 MarAMemAccMsbClrInc; /* Map to 0x4XA7 */
/* Utility Memory Access via MAR B */
UWord16 MarBMemAcc; /* Map to 0x4XA8 */
UWord16 MarBMemAccInc; /* Map to 0x4XA9 */
UWord16 MarBMemAccClr; /* Map to 0x4XAA */
UWord16 MarBMemAccClrInc; /* Map to 0x4XAB */
UWord16 MarBMemAccMsb; /* Map to 0x4XAC */
UWord16 MarBMemAccMsbInc; /* Map to 0x4XAD */
UWord16 MarBMemAccMsbClr; /* Map to 0x4XAE */
UWord16 MarBMemAccMsbClrInc; /* Map to 0x4XAF */
/* Utility Memory MAR A */
UWord16 MarAMem_LSW; /* Map to 0x4XB0 */
UWord16 Spare1Reg[3]; /* Map to 0x4XB1 - 0x4XB3 */
UWord16 MarAMem_MSW; /* Map to 0x4XB4 */
UWord16 MarAMem_MSWInc; /* Map to 0x4XB5 */
UWord16 MarAMem_MSWClr; /* Map to 0x4XB6 */
UWord16 MarAMem_MSWClrInc; /* Map to 0x4XB7 */
/* Utility Memory MAR B */
UWord16 MarBMem_LSW; /* Map to 0x4XB8 */
UWord16 Spare2Reg[3]; /* Map to 0x4XB9 - 0x4XBB */
UWord16 MarBMem_MSW; /* Map to 0x4XBC */
UWord16 MarBMem_MSWInc; /* Map to 0x4XBD */
UWord16 MarBMem_MSWClr; /* Map to 0x4XBE */
UWord16 MarBMem_MSWClrInc; /* Map to 0x4XBF */
} fpga_IO;
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