M32C8A Datasheet, PDF (179/372 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M32C/80 Series

M32C/8A Group
15. Timers (Timer A)
FFFFh
Contents of the
m
counter
m = contents of
the reload register
Count stops
Count stops _{Count stops}
Count starts
Count starts
Re-trigger input
Count starts
Reload
Reload
Reload
0000h
TAiS bit in the
1
TABSR register
0
Write signal to
TAiOS bit in the
ONSF register
One-shot pulse _{“H”}
output from the
TAiOUT pin
“L”
IR bit in the
1
TAiIC register
0
1 / fj x m
1 / fj x (m + 1)
Set to 0 by an interrupt request acknowledgement or by program
fj: Frequency of the count source (f1, f8, f2n⁽¹⁾, fC32)
i = 0 to 4
NOTE:
1. Bits CNT3 to CNT0 in the TCSPR register select no division (n = 0) or divide-by-2n (n = 1 to 15).
(Conditions) TAiMR register: Bits TMOD1 and TMOD0 are set to 10b (one-shot timer mode).
The MR2 bit is set to 0 (The TAiOS bit in the ONSF register is enabled).
Figure 15.18 Operation in One-Shot Timer Mode (Timer A)
Rev.1.00 Jul 15, 2007 Page 162 of 352
REJ09B0385-0100