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35 Appendix C
C.3 Counter 0/1 Mode Register
1. CM1 to CM0: Output Control
00
= Active High Terminal Count Pulse
01 = Active Low Terminal Count Pulse
10 = TC Toggled from low
11 = TC Toggled from high
2. CM2: Output Enable Control
0
= Disable Output (High impedance)
1 = Enable Output
3. CM6 to CM3: Count Control
CM6:
0 = Disable edge disarm in edge gate mode
1 = Enable edge disarm in edge gate mode
CM5:
0 = Reload from Load
1 = Reload from Load or Hold
CM4:
0 = Count Once
1 = Count Repetitively
Base
Address
+ HEX
PCM-3780 Register Format
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
oh W Counter 0 Mode Register
CM15 CM14 CM13 CM12 CM11 CM10 C
M9
C
M8
C
M7
C
M6
C
M5
CM
4
CM
3
CM
2
CM
1
CM
0
R Counter 0 Mode Register
CM15 CM14 CM13 CM12 CM11 CM10 C
M9
C
M8
C
M7
C
M6
C
M5
CM
4
CM
3
CM
2
CM
1
CM
0
8h W Counter 1 Mode Register
CM15 CM14 CM13 CM12 CM11 CM10 C
M9
C
M8
C
M7
C
M6
C
M5
CM
4
CM
3
CM
2
CM
1
CM
0
R Counter 1 Mode Register
CM15 CM14 CM13 CM12 CM11 CM10 C
M9
C
M8
C
M7
C
M6
C
M5
CM
4
CM
3
CM
2
CM
1
CM
0