Toggle Mode, Trm = 0 - Motorola DSP56303 User Manual

Mode 2 (internal clock): TRM = 0
N = write preload
M = write compare
TE
Clock
(CLK/2 or prescale CLK)
TLR
Counter (TCR)
TCPR
TCF (Compare Interrupt if TCIE = 1)
TIO pin (INV = 0)
TIO pin (INV = 1)
TOF (Overflow Interrupt if TCIE = 1)
first event
N
0 N
N + 1
M
Figure 9-8. Toggle Mode, TRM = 0
Triple Timer Module
M + 1 0
M
First toggle = M - N clock periods
Second and later toggles = 2
Operating Modes
1
24
clock periods
9-11