R5F21133DFP RENESAS [Renesas Technology Corp], R5F21133DFP Datasheet - Page 83

• Manufacturer Part Number: R5F21133DFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY/R8C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

R8C/13 Group
Rev.1.20
REJ09B0111-0120
Figure 12.3 PREX Register, TX Register, and TCSS Register
Jan 27, 2006
b7
Prescaler X Register
Timer X Register
b7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
b7
T i m e r c o u n t s o u r c e s e t t i n g r e g i s t e r
0
NOTES:
1. Avoid switching a count source, while a counter is in progress. Timer counter must be stopped before switching a count
0
source.
page 72 of 205
B i t s y m b o l
T X C K 0
T X C K 1
T Y C K 0
T Y C K 1
TZCK0
TZCK1
( b 7 - b 6 )
Underflow of Prescaler X is counted
Event counter mode
Pulse width
measurement mode
Pulse period
measurement mode
Timer mode
Pulse output mode
S y m b o l
T C S S
Mode
T i m e r X c o u n t s o u r c e
s e l e c t b i t
Timer Y count source
select bit
T i m e r Z c o u n t s o u r c e
s e l e c t b i t
R e s e r v e d b i t
b0
b0
Bit name
(1 )
(1)
( 1 )
Symbol
Symbol
Pulse width of externally input
pulses is measured
(Internal count source is counted)
Pulse period of externally input
pulses is measured
(Internal count source is counted)
A d d r e s s
Internal count source is counted
Internal count source is counted
Externally input pulses are counted
PREX
0 0 8 E
TX
Function
1 6
b5 b4
b 1 b 0
b 3 b 2
0 0 : f
0 1 : f
1 0 : S e l e c t s T i m e r Y u n d e r f l o w
1 1 : f
0 0 : f
0 1 : f
1 0 : f
1 1 : f
0 0 : f
0 1 : f
1 0 : f
1 1 : Selects input from CNTR
Must be set to “0”
Function
A f t e r r e s e t
1
8
2
1
8
32
2
1
8
RING
0 0
1 6
Address
Address
008C
008D
Function
16
16
1
pin
Setting range
00
Setting range
00
After reset
00
00
After reset
00
00
16
16
16
16
16
16
FF
FF
to FF
to FF
to FF
to FF
to FF
to FF
16
16
12.1 Timer (Timer X)
16
16
16
16
16
16
RW
RW
RW
RW
RW
RW
RW
RW
RW
R W
R W
R W
RW
R W
R W
RW