Motorola DSP56301 - Manual (Page 271)

Operating Modes
Triple Timer Module 9 -9
Figure 9-6. Pulse Mode (TRM = 0)
Mode 1 (internal clock): TRM = 0
N = write preload
M = write compare
TE
(CLK/2 or prescale CLK)
TLR
TCPR
TCF (Compare Interrupt if TCIE = 1)
first event
M
1
N
pulse width =
timer clock
period
TIO pin (INV = 0)
TIO pin (INV = 1)
TOF (Overflow Interrupt if TCIE = 1)
Counter (TCR) 0 N N + 1 M 0 M + 1
Clock