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参数资料
型号： M37641F8HP
元件分类： 微控制器/微处理器
英文描述： 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP80
封装： 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80
文件页数： 57/136页
文件大小： 1672K
代理商： M37641F8HP
27
7641 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Timer 1, Timer 2, Timer 3
Timer 1, timer 2, and timer 3 are 8-bit timers. The count source for
each timer can be selected by timer 123 mode register.
q Timers 1, 2 Write Control
When the Timers 1, 2 Write Control Bit is “1” and the values are
written in the address of timers 1 and 2, the values are loaded only
in their latches. The values in the latches are loaded in timers 1
and 2 after timers 1 and 2 underflow.
When the Timers 1, 2 Write Control Bit is “0” and the values are
written in the address of timers 1 and 2, the values are loaded in
the timers 1 and 2 and their latches at the same time.
q Timers 1, 2 Output Control
A signal of which polarity is inverted each time the timer selected
by the TOUT Factor Select Bit underflows is output from the TOUT
pin. This is enabled by setting the TOUT Output Control Bit to “1”.
When the TOUT Output Active Edge Switch Bit is “0”, the TOUT pin
starts pulses output beginning at “H”; when this bit is “1”, the TOUT
pin starts pulses output beginning at “L”.
When using a timer in this mode, set the port P51 direction regis-
ter to output mode.
s Notes
q Timer 1 to Timer 3
Switching of the count sources of timers 1 to 3 does not affect the
values of reload latches. However, that may make count operation
started. Therefore, write values again in the order of timers 1, 2
and then timer 3 after their count sources have been switched.
q Timers 1, 2 Write Control
When the value is to be written in latch only, unexpected value
may be set in the timer if the writing in the latch and the timer un-
derflow are performed at the same timing.
Fig. 22 Structure of timer 123 mode register
Timer 123 mode register (address 002916)
T123M
TOUT factor select bit
0: Timer 1 output
1: Timer 2 output
Timer 1 count stop bit
0: Count start
1: Count stop
Timer 1 count source select bit
0 :
φ / 8
1 : f(XCIN) / 2
Timer 2 count source select bit
0 : Timer 1 output
1 :
φ
Timer 3 count source select bit
0 : Timer 1 output
1 :
φ / 8
TOUT output active edge switch bit
0 : Start at “H” output
1 : Start at “L” output
TOUT output control bit
0: TOUT output disabled
1: TOUT output enabled
Timers 1, 2 write control bit
0: Write value in latch and counter
1: Write value in latch only
b0
b7
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相关代理商/技术参数
参数描述
M37641F8HP#U0 功能描述:IC 740 MCU FLASH 32K 80LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:740/7600 产品培训模块:Graphics LCD System and PIC24 Interface Asynchronous Stimulus 标准包装:27 系列:PIC® 24H 核心处理器:PIC 芯体尺寸:16-位 速度:40 MIP 连通性:I²C，SPI，UART/USART 外围设备:欠压检测/复位，POR，PWM，WDT 输入/输出数:21 程序存储器容量:12KB（4K x 24） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1K x 8 电压 - 电源 (Vcc/Vdd):3 V ~ 3.6 V 数据转换器:A/D 10x10b/12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 包装:管件 产品目录页面:648 (CN2011-ZH PDF) 配用:AC164339-ND - MODULE SKT FOR PM3 28SOICDV164033-ND - KIT START EXPLORER 16 MPLAB ICD2
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