m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 32

• Manufacturer Part Number: m5m51016btp
• Description: Renesas 16-bit Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Figure 2.2.17. Set-up procedure of two-phase pulse signal process in event counter mode, normal mode selected
(b15)
Setting count start flag
Setting divide ratio
b7
b7
b7
Selecting event counter mode and functions
Two-phase pulse signal processing select bit
b7
Setting trigger select register
b7
0
Note 1: First set to “Reload type” operation. Once the first counting pulse has occurred,
1
Note 2: Set the corresponding port direction register to “0”.
0
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the timer may be changed to “Free-Run type”.
1
0
0
0
(b8)
b0
b0
b0
b0
1
b0
Selection of event counter mode
Two-phase pulse signal processing operation select bit
Timer A2 two-phase pulse signal processing select bit
Timer A3 two-phase pulse signal processing select bit
Timer A2 event/trigger select bit
Timer A3 event/trigger select bit
b7
Timer A2 count start flag
Timer A3 count start flag
0 (Must always be “0” when using two-phase pulse signal processing)
0 (Must always be “0” when using two-phase pulse signal processing)
1 (Must always be “1” when using two-phase pulse signal processing)
0 (Must always be “0” when using two-phase pulse signal processing)
Count operation type select bit (Note 1)
b3 b2
b5 b4
0 : Normal processing operation
1 : Two-phase pulse signal processing enabled
0 0 : Input on TA3
1 : Two-phase pulse signal processing enabled
0 0 : Input on TA2
1 : Free-run type
Count start flag [Address 0380
TABSR
Up/down flag [Address 0384
UDF
Trigger select register [Address 0383
TRGSR
Timer Ai mode register (i=2, 3) [Address 0398
TAiMR (i=2, 3)
Can be set to 0000
Start count
IN
IN
is selected (Note 2)
is selected (Note 2)
b0
16
Timer A2 register [Address 038B
Timer A3 register [Address 038D
16
to FFFF
]
16
]
16
16
]
16
, 0399
16
]
16
16
, 038A
, 038C
16
16
] TA2
] TA3
2. Timer A