Rainbow Electronics ATAR862-3 - Manual (Page 48)

48
ATAR862-3
4556B–4BMCU–02/03
Toggle Mode C : A Timer 2 compare match toggles the output flip-flop (M2) -> T2O
Figure 44. Pulse Generator – the Timer Toggles with Timer Overflow and Compare
Match
Timer 2 Output Mode 2 Duty Cycle Burst Generator 1: The DCG output signal (DCGO) is given to the output,
and gated by the output flip-flop (M2)
Figure 45. Carrier Frequency Burst Modulation with Timer 2 Toggle Flip-flop Output
Timer 2 Output Mode 3 Duty Cycle Burst Generator 2: The DCG output signal (DCGO) is given to the output,
and gated by the SSI internal data output (SO)
Figure 46. Carrier Frequency Burst Modulation with the SSI Data Output
4 0 0 0 1 2 3 5 6 7 4 0 1 2 3 5 6
Input
Counter 2
T2R
Counter 2
CMx
OVF2
INT4
T2O
4095/
255
1 2 0 1 2 0 1 2 3 4 5 0 1 2 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5
DCGO
Counter 2
TOG2
M2
T2O
Counter = compare register (=2)
1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1
DCGO
Counter 2
TOG2
SO
T2O
Counter = compare register (=2)
Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Bit 8 Bit 9 Bit 10 Bit 11 Bit 12 Bit 13