Timer Mode (Trm = 1); Timer Mode (Trm = 0) - Motorola DSP56303 User Manual

Mode 0 (internal clock, no timer output): TRM = 1
N = write preload
M = write compare
TE
Clock
(CLK/2 or prescale CLK)
TLR
Counter (TCR)
TCPR
TCF (Compare Interrupt if TCIE = 1)
Mode 0 (internal clock, no timer output): 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)
TOF (Overflow Interrupt if TCIE = 1)
first event
N
0 N
M
Figure 9-3. Timer Mode (TRM = 1)
first event
N
0 N
M
Figure 9-4. Timer Mode (TRM = 0)
Triple Timer Module
last event
N + 1 M
last event
N + 1 M + 1
M
Operating Modes
N N + 1
1
0
9-7