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参数资料
| 型号： | M306N5FCTGP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP100 |
| 封装： | 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100 |
| 文件页数： | 55/63页 |
| 文件大小： | 825K |
| 代理商： | M306N5FCTGP |
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Mitsubishi microcomputers
M16C / 62A Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Timer B
83
Item
Specification
Count source
External signals input to TBiIN pin
Effective edge of count source can be a rising edge, a falling edge, or falling
and rising edges as selected by software
Count operation
Counts down
When the timer underflows, it reloads the reload register contents before
continuing counting
Divide ratio
1/(n+1)
n : Set value
Count start condition
Count start flag is set (= 1)
Count stop condition
Count start flag is reset (= 0)
Interrupt request generation timing The timer underflows
TBiIN pin function
Count source input
Read from timer
Count value can be read out by reading timer Bi register
Write to timer
When counting stopped
When a value is written to timer Bi register, it is written to both reload register and counter
When counting in progress
When a value is written to timer Bi register, it is written to only reload register
(Transferred to counter at next reload time)
(2) Event counter mode
In this mode, the timer counts an external signal or an internal timer's overflow. (See Table 1.13.7.)
Figure 1.13.18 shows the timer Bi mode register in event counter mode.
Table 1.13.7. Timer specifications in event counter mode
Figure 1.13.18. Timer Bi mode register in event counter mode
Timer Bi mode register
Symbol
Address
When reset
TBiMR(i=0 to 5)
039B16 to 039D16
00XX00002
035B16 to 035D16
00XX00002
Bit name
Function
Bit symbol
W
R
b7
b6
b5
b4
b3
b2
b1
b0
Operation mode select bit
0 1 : Event counter mode
b1 b0
TMOD1
TMOD0
MR0
Count polarity select
bit (Note 1)
MR2
MR1
MR3
TCK1
TCK0
01
0 0 : Counts external signal's
falling edges
0 1 : Counts external signal's
rising edges
1 0 : Counts external signal's
falling and rising edges
1 1 : Inhibited
b3 b2
Note 1: Valid only when input from the TBiIN pin is selected as the event clock.
If timer's overflow is selected, this bit can be “0” or “1”. Since Timer B1 does
not have TB1IN pin, the setting value of this bit is invaid.
Note 2: Timer B0, timer B3.
Note 3: Timer B1, timer B2, timer B4, timer B5.
Note 4: Set the corresponding port direction register to “0”. Since Timer B1 does not
have TB1IN pin, do not use TB1IN pin as event clock.
Invalid in event counter mode. Can be “0” or “1”.
Event clock select
0 : Input from TBiIN pin (Note 4)
1 : TBj overflow
(j = i – 1; however, j = 2 when i = 0,
j = 5 when i = 3)
0 (Fixed to “0” in event counter mode; i = 0, 3)
(Note 2)
(Note 3)
Invalid in event counter mode.
In an attempt to write to this bit, write “0”. The value, if read in
event counter mode, turns out to be indeterminate.
Nothing is assigned (i = 1, 2, 4, 5).
In an attempt to write to this bit, write “0”. The value, if read, turns out
to be indeterminate.
Note: Timer B1 works exclusively as an internal timer since timer B1 does not have input port (TB1IN).
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相关代理商/技术参数 |
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| M306N5FCVFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:Renesas MCU |
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| M306N5MCT-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:Renesas MCU |
| M306N5MCT-XXXGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:Renesas MCU |
| M306N5MCV-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:Renesas MCU |
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