M16C28 Datasheet, PDF (175/423 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

M16C/28 Group (M16C/28, M16C/28B)
13. Timer S
(a) With the prescaler function
(When the G1TPRj register (j = 6,7) is set to "0216", the PR bit in the G1TMCRj (j = 6,7) register is set to "1")
fBT1
Base timer
INPC1j pin input or
trigger signal after
passing the digital
filter
Internal time
measurement trigger
Prescaler ⁽¹⁾
G1IRj bit ⁽²⁾
n-2 n-1 n n+1 n+2 n+3 n+4 n+5 n+6 n+7 n+8 n+9 n+10 n+11 +12 n+13 n+14
2
1
0
2
Set 0 by program if necessary
G1TMj register
n+1
n+13
NOTES:
1. This applies to 2nd or later prescaler cycle after the PR bit in the G1TMCRj register is set to "1" (prescaler used).
2. Bits in the G1IR register.
(b) With the gate function
(The gate function is cleared by matching the base timer with the G1POk register(k=4,5),
the GT bit in the G1TMCRj (j = 6, 7) register is set to "1", the GOC bit is set to "1")
fBT1
Base timer
FFFF16
Value of the G1POk register
IFEj bit in G1FE
register
000016
INPC1j pin input or
trigger signal after
passing the digital
filter
Internal time
measurement trigger
G1POk register
match signal
This trigger input is disabled
due to gate function.
Gate control signal
G1IRj bit ⁽¹⁾
Gate
Gate cleared
Set 0 by program if necessary
Gate
G1TMj register
NOTE:
1. Bits in the G1IR register.
Figure 13.21 Prescaler Function and Gate Function
Rev. 2.00 Jan. 31, 2007 ^{page 155} of 385
REJ09B0047-0200