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参数资料
| 型号： | M38063E6FS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, UVPROM, 8 MHz, MICROCONTROLLER, CQCC80 |
| 封装： | 0.80 MM PITCH, CERAMIC, LCC-80 |
| 文件页数： | 13/60页 |
| 文件大小： | 712K |
| 代理商： | M38063E6FS |
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17
MITSUBISHI MICROCOMPUTERS
3806 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Timers
The 3806 group has four timers: timer X, timer Y, timer 1, and
timer 2.
All timers are count down. When the timer reaches “0016”, an un-
derflow occurs at the next count pulse and the corresponding
timer latch is reloaded into the timer and the count is continued.
When a timer underflows, the interrupt request bit corresponding
to that timer is set to “1”.
The division ratio of each timer or prescaler is given by 1/(n + 1),
where n is the value in the corresponding timer or prescaler latch.
Timer 1 and Timer 2
The count source of prescaler 12 is the oscillation frequency di-
vided by 16. The output of prescaler 12 is counted by timer 1 and
timer 2, and a timer underflow sets the interrupt request bit.
Timer X and Timer Y
Timer X and Timer Y can each be selected in one of four operating
modes by setting the timer XY mode register.
Timer Mode
The timer counts f(XIN)/16 in timer mode.
Pulse Output Mode
Timer X (or timer Y) counts f(XIN)/16. Whenever the contents of
the timer reach “0016”, the signal output from the CNTR0 (or
CNTR1) pin is inverted. If the CNTR0 (or CNTR1) active edge
switch bit is “0”, output begins at “ H”.
If it is “1”, output starts at “L”. When using a timer in this mode, set
the corresponding port P54 ( or port P55) direction register to out-
put mode.
Event Counter Mode
Operation in event counter mode is the same as in timer mode,
except the timer counts signals input through the CNTR0 or
CNTR1 pin.
Pulse Width Measurement Mode
If the CNTR0 (or CNTR1) active edge selection bit is “0”, the timer
counts at the oscillation frequency divided by 16 while the CNTR0
(or CNTR1) pin is at “H”. If the CNTR0 (or CNTR1) active edge
switch bit is “1”, the count continues during the time that the
CNTR0 (or CNTR1) pin is at “L”.
In all of these modes, the count can be stopped by setting the
timer X (timer Y) count stop bit to “1”. Ever y time a timer
underflows, the corresponding interrupt request bit is set.
Fig. 8 Structure of timer XY register
Timer X count stop bit
0: Count start
1: Count stop
Timer XY mode register
(TM : address 002316)
Timer Y operating mode bit
0 0: Timer mode
0 1: Pulse output mode
1 0: Event counter mode
1 1: Pulse width measurement mode
CNTR1 active edge switch bit
0: Interrupt at falling edge
Count at rising edge in event
counter mode
1: Interrupt at rising edge
Count at falling edge in event
counter mode
b7
CNTR0 active edge switch bit
0: Interrupt at falling edge
Count at rising edge in event
counter mode
1: Interrupt at rising edge
Count at falling edge in event
counter mode
b0
Timer X operating mode bit
0 0: Timer mode
0 1: Pulse output mode
1 0: Event counter mode
1 1: Pulse width measurement mode
b1b0
b5b4
Timer Y count stop bit
0: Count start
1: Count stop
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M38067E8FS | 功能描述:IC 740 MCU EPROM 32K 80LCC RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 标准包装:160 系列:S08 核心处理器:S08 芯体尺寸:8-位 速度:40MHz 连通性:I²C，LIN，SCI，SPI 外围设备:LCD，LVD，POR，PWM，WDT 输入/输出数:53 程序存储器容量:32KB（32K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1.9K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:A/D 12x12b 振荡器型:内部 工作温度:-40°C ~ 105°C 封装/外壳:64-LQFP 包装:托盘 |
| M38067ECAFS | 功能描述:IC 740 MCU EPROM 48K 80LCC RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 标准包装:160 系列:S08 核心处理器:S08 芯体尺寸:8-位 速度:40MHz 连通性:I²C，LIN，SCI，SPI 外围设备:LCD，LVD，POR，PWM，WDT 输入/输出数:53 程序存储器容量:32KB（32K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1.9K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:A/D 12x12b 振荡器型:内部 工作温度:-40°C ~ 105°C 封装/外壳:64-LQFP 包装:托盘 |
| M38067ECFP | 制造商:Renesas 功能描述:MCU 8-Bit 740 CISC 48KB EPROM 3.3V/5V 80-Pin PQFP |
| M38067MC-130GP | 制造商:Renesas Electronics Corporation 功能描述:MCU - Trays |
| M38067RFS | 制造商:Renesas Electronics Corporation 功能描述:EMULATION MCU/8BIT CMOS EMULATION CHIP - Bulk |
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