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Appendix A: Memory and Register Mapping
AM700 Audio Measurement Set Service Manual
A-15
Table A-25: Status register (SR), U52 and U53, address: $4000 0000 (cont.)
Bit DescriptionName
6 SIRQ Serializer interrupt
1 = no interrupt
0 = interrupt is active
7 DMA_Busy DMA transfer status
1 = no transfer/burst transfer completed
0 = burst transfer in process
8 A_Fault Port A access fault
1 = no access fault
0 = access fault detected
9 B_Fault Port B access fault
1 = no access fault
0 = access fault detected
10 reserved
11 reserved
12 to 15 DSP Hardware Version Number: 1 (hex)
Table A-26: Program register, U54 and U62, address: $4100 0000
Bit Name Description
0 MA_Fault 1 = mask Port A access fault interrupt
1 MB_Fault 1 = mask Port B access fault interrupt
2 MIRQ_100 1 = mask 100 Hz periodic interrupt
3 MIRQ_1K 1 = mask 1 kHz periodic interrupt
4 MSIRQ 1 = mask serializer interrupt
5 SMOD1 serializer mode bit 1
6 SMOD0 Serializer mode bit 0
7 LBACK Analog Port local loopback select
8 Fault_A_Clr 0 = reset port A access fault flag
9 Fault_B_Clr 0 = reset port B access fault flag
Table A-27: SMOD1 and SMOD0 bit settings
SMOD2 SMOD1 SMOD0 Description
0 0 0 Select AFE bit clock at 192 kHz
0 0 1 Select AFE bit clock at 48 kHz
1 0 1 Select DAB bit clock at 48 kHz