參數(shù)資料
型號： M306N5FCVGP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100
文件頁數(shù)： 47/63頁
文件大?。?/td> 825K
代理商： M306N5FCVGP
Timer A1
Mitsubishi microcomputers
M16C / 62A Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
76
Note 1: The settings of the corresponding port register and port direction register are invalid.
Note 2: This bit is valid when only counting an external signal.
Note 3: Set the corresponding port direction register to “0”.
Note 4: This bit is valid for the timer A3 mode register.
For timer A2 and A4 mode registers, this bit can be “0 ”or “1”.
Note 5: When performing two-phase pulse signal processing, make sure the two-phase pulse
signal processing operation select bit (address 038416) is set to “1”. Also, always be
sure to set the event/trigger select bit (addresses 038216 and 038316) to “00”.
Note 6: Set these bits "0" in timer A2 and A3 mode registers.
Timer Ai mode register
(When not using two-phase pulse signal processing)
Symbol
Address
When reset
TAiMR(i = 2 to 4) 039816 to 039A16
0016
b7
b6
b5
b4
b3
b2
b1
b0
Operation mode select bit
0 1 : Event counter mode
b1 b0
TMOD1
TMOD0
MR0
Pulse output function
select bit
0 : Pulse is not output
(TAiOUT pin is a normal port pin)
1 : Pulse is output (Note 1)
(TAiOUT pin is a pulse output pin)
Count polarity
select bit (Note 2,6)
MR2
MR1
MR3
0 : (Must always be “0” in event counter mode)
TCK1
TCK0
01
0
0 : Counts external signal's falling edges
1 : Counts external signal's rising edges
Up/down switching
cause select bit
0 : Up/down flag's content
1 : TAiOUT pin's input signal (Note 3)
Bit symbol
Bit name
Function
W
R
Count operation type
select bit
Two-phase pulse signal
processing operation
select bit (Note 4,5)
0 : Reload type
1 : Free-run type
0 : Normal processing operation
1 : Multiply-by-4 processing operation
Note 1: This bit is valid for timer A3 mode register.
For timer A2 and A4 mode registers, this bit can be “0” or “1”.
Note 2: When performing two-phase pulse signal processing, make sure the two-phase pulse
signal processing operation select bit (address 038416) is set to “1”. Also, always be
sure to set the event/trigger select bit (addresses 038216 and 038316) to “00”.
Note 3: Timer A2 cannot be used for two-phase pulse signal processing.
Timer Ai mode register
(When using two-phase pulse signal processing)
Symbol
Address
When reset
TAiMR(i = 2 to 4) 039816 to 039A16
0016
b7
b6
b5
b4
b3
b2
b1
b0
Operation mode select bit
0 1 : Event counter mode
b1 b0
TMOD1
TMOD0
MR0
0 (Must always be “0” when using two-phase pulse signal
processing)
0 (Must always be “0” when using two-phase pulse signal
processing)
MR2
MR1
MR3
0 (Must always be “0” when using two-phase pulse signal
processing)
TCK1
TCK0
01
0
1 (Must always be “1” when using two-phase pulse signal
processing)
Bit symbol
Bit name
Function
W
R
Count operation type
select bit
Two-phase pulse
processing operation
select bit (Note 1)(Note 2)
0 : Reload type
1 : Free-run type
0 : Normal processing operation
1 : Multiply-by-4 processing operation
0
1
(Note 6)
Figure 1.13.9. Timer Ai mode register in event counter mode
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