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The Trigger Immediate Register base + 5D
16
A trigger immediate occurs when any 8-bit value is written to the trigger
immediate register shown below.
Address 76543210
base + 5D
16
register write: sends trigger (sample) immediate
The Decade Division Register base +61
16
The decade division register is used with the binary division register to
divide the reference frequency in order to obtain the desired sample rate.
The register bits are defined below.
Address 7 6 5 4 3 2 1 0
base + 61
16
128
64 32 16 8 4 2 1
Purpose
divide by
10E7
divide by
10E6
divide by
10E5
divide by
10E4
divide by
1000
divide by
100
divide by
10
divide by
1
Setting
0 - off
1 - on
0 - off
1 - on
0 - off
1 - on
0 - off
1 - on
0 - off
1 - on
0 - off
1 - on
0 - off
1 - on
0 - off
1 - on
Only one bit at a time can be set in this register. The decade division
selected (bits 7 - 0 or bit 0 of base + 63
16
) is combined with the binary
division selected (bits 3 - 1 of base + 63
16
) to derive the sample rate from
the reference source.
The Binary Division Register base + 63
16
The binary division register is used with the decade division register to
divide the reference frequency in order to obtain the desired sample rate.
The register bits are defined below.
Address 7 6 5 4 3 2 1 0
base + 63
16
128
64 32 16 8 4 2 1
Purpose
reserved (bits 7 - 4 must be set to 1000) divide by
4
divide by
2
divide by
1
divide by
10E8
Setting
1 0 0 0 0 - off
1 - on
0 - off
1 - on
0 - off
1 - on
0 - off
1 - on
Appendix C Register Programming 361