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
CM15CM14 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
CM15CM14 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
CM15CM14 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
CM15CM14 CM13 CM12 CM11 CM10 C
M9
C
M8
C
M7
C
M6
C
M5
CM
4
CM
3
CM
2
CM
1
CM
0