Renesas M16C Series User Manual

Timer A
M30240 Group
Rev.1.00 Sep 24, 2003 Page 160 of 360
Figure 2.20: Set-up procedure of 2-phase pulse signal process in event counter mode, multiply by 4
Setting divide ratio
Can be set to 000016 to FFFF16
b7 b0
(b15) (b8)
b7 b0
Timer A3 register [Address 038D 16, 038C16] TA3
Timer A4 register [Address 038F
16, 038E16] TA4
Start count
Selecting event counter mode and functions
0 (Must always be “0” when using two-phase pulse signal processing)
Timer Ai mode register (i= 3, 4) [Address 0399 16, 039A16]
TAiMR (i= 3, 4)
1 (Must always be “1” when using two-phase pulse signal processing)
Selection of event counter mode
Two-phase pulse signal processing operation select bit
1 : Multiply-by-4 processing operation
Count operation type select bit
1 : Free-run type
0 (Must always be “0” when using two-phase pulse signal processing)
0 (Must always be “0” when using two-phase pulse signal processing)
b7 b0
01001011
Two-phase pulse signal processing select bit
b7 b0
Up/down flag [address 0384 16]
UDF
Timer A3 two-phase pulse signal processing select bit
1 : Two-phase pulse signal processing enabled
Timer A4 two-phase pulse signal processing select bit
1 : Two-phase pulse signal processing enabled
Setting count start flag
Count start flag [Address 0380 16]
TABSR
Timer A3 count start flag
Timer A4 count start flag
b7 b0

Renesas M16C Series Specifications

General

Brand	Renesas
Model	M16C Series
Category	Computer Hardware
Language	English