参数资料
型号: M37630E4FS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, UVPROM, 10 MHz, MICROCONTROLLER, CQCC80
封装: 0.80 MM PITCH, CERAMIC, LCC-80
文件页数: 16/48页
文件大小: 563K
代理商: M37630E4FS
MITSUBISHI MICROCOMPUTERS
7630 Group
23
MITSUBISHI
ELECTRIC
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
TIMER 1, TIMER 2, TIMER 3
Timers 1 to 3 are 8-bit timers with 8-bit reload latches and one com-
mon pre-divider. Timer 1 can operate in the timer mode only,
whereas timers 2 and 3 can be used to generate a PWM output sig-
nal timing as well. Timers 1 to 3 are down count timers. See Fig. 21.
Fig. 21
Block diagram of timers 1 to 3 (
φ is internal system clock)
Timer 1
The count source of timer 1 is the output of timer 123 pre-divider.
The division ratio of the pre-divider can be selected by the pre-
divider division ratio bits of timer 123 mode register (T123M). Refer
to Timer 123 mode register configuration (f is internal system clock).
On a timer 1 underflow, the timer 1 interrupt request bit will be set to
“1”.
Writing to timer 1 initializes the latch and counter.
Timers 2 and 3
The count source of timers 2 and 3 can be either the output of the
timer 123 pre-divider or the timer 1 underflow. The count source can
be selected by the timer count source selection bits of timer 123
mode register (T123M).
Writing to timer 2 register affects the reload latch only or both of the
reload latch and counter depending on the timer 2 write control bit
of T123M. When the timer write control bit is set to “0”, both latch
and counter will be initialized simultaneously; when set to “1” only
the reload latch will be initialized, on an underflow, the counter will
be set to the modified reload value. Writing to timer 3 initializes
latch and counter both.
Timer 2 or 3 underflow causes the timer 2 or 3 interrupt request bit
to be set to “1”.
T123M0
1
1/8
1/32
1/128
T123M67
φ
T1 counter (8)
T1 latch (8)
T2 counter (8)
T2 latch (8)
T3 counter (8)
T3 latch (8)
T1 interrupt
T2 interrupt
T3 interrupt
S
R
Q
S
R
Q
T123M3
T123M4
T123M1
S
TQ
P16/PWM
P16 latch
P1D6
T123M1
“00
“01”
“10”
“11”
“1”
“0”
“1”
“0”
“1”
相关PDF资料
PDF描述
M37630E4T-XXXFP 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQFP44
M37630E4FP 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQFP44
M37640E8FP 8-BIT, OTPROM, 24 MHz, MICROCONTROLLER, PQFP80
M37640E8FS 8-BIT, OTPROM, 24 MHz, MICROCONTROLLER, PQFP80
M37640M8-XXXFP 8-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP80
相关代理商/技术参数
参数描述
M37630E4T-XXXFP 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37630E4T-XXXFS 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37630M4T 制造商:CMLMICRO 制造商全称:CML Microcircuits 功能描述:Baseband Processor for ‘Leisure’ Radios with Data
M37630M4T-XXXFP 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37630M4T-XXXFS 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER