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参数资料
| 型号： | M37630E4T-XXXFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQFP44 |
| 封装： | 0.80 MM PITCH, PLASTIC, QFP-44 |
| 文件页数： | 15/48页 |
| 文件大小： | 563K |
| 代理商： | M37630E4T-XXXFP |
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MITSUBISHI
ELECTRIC
22
MITSUBISHI MICROCOMPUTERS
7630 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Fig. 20
Timer X bi-phase counter mode operation
(3) Event counter mode
This mode is available with timer X and timer Y.
Count source
The count source for timer X is the input signal to the P14/CNTR0
pin and for timer Y the input signal to P15/CNTR1 pin.
Operation
The timer counts down. On a timer underflow, the corresponding
timer interrupt request bit will be set to “1”, the contents of the
corresponding timer latches will be reloaded to the counters and
counting continues. The active edge used for counting can be
selected by the polarity selection bit of the corresponding pin
P14/CNTR0 or P15/CNTR1. These bits are part of TXM (Structure
of Timer X mode register) and TYM (Structure of timer Y mode
register (f is internal system clock)) registers.
(4) Pulse width measurement mode
This mode is available with timer X only.
Count source
The count source is the output of timer X clock divider. The divi-
sion ratio can be selected by the timer Y mode register.
Operation
The timer counts down while the input signal level on
P14/CNTR0 matches the active polarity selected by the CNTR0
polarity selection bit of TXM (Structure of Timer X mode regis-
ter). On a timer underflow, the timer X interrupt request bit will be
set to “1”, the contents of the timer latches are reloaded to the
counters and counting continues. When the input level changes
from active polarity (as selected), the CNTR0 interrupt request bit
will be set to “1.” The measurement result may be obtained by
reading timer X during interrupt service.
(5) Pulse period measurement mode
This mode is available with timer Y only.
Count source
The count source is the output of timer Y clock divider.
Operation
The active edge of input signal to be measured can be selected
by CNTR1 polarity selection bit (Fig. 18). When this bit is set to
“0”, the time between two consecutive falling edges of the signal
input to P15/CNTR1 pin will be measured, when the polarity bit is
set to “1”, the time between two consecutive rising edges will be
measured.
The timer counts down. On detection of an active edge of input
signal, the contents of the TY counters will be transferred to tem-
porary registers assigned to the same addresses as TY. At the
same time, the contents of TY latches will be reloaded to the
counters and counting continues. The active edge of input signal
also causes the CNTR1 interrupt request bit to be set to “1”. The
measurement result may be obtained by reading timer Y during
interrupt service.
(6) H/L pulse width measurement mode
This mode is available with timer Y only.
Count source
The count source is the output of the timer Y’s clock divider.
Operation
This mode measures both the “H” and “L” periods of a signal
input to P15/CNTR1 pin continuously. On detection of any edge
(rising or falling) of input signal to P15/CNTR1 pin, the contents of
timer Y counters are stored to temporary registers which are
assigned to the same addresses as timer Y. At the same time,
the contents of timer Y latches are reloaded to the counters and
counting continues. The detection of an edge causes the
CNTR1 interrupt request bit to be set to “1” as well. The result of
measurement may be obtained by reading timer Y during inter-
rupt service. This read access will address the temporary regis-
ters. On a timer underflow, the timer Y interrupt request bit will
be set to “1”, the contents of timer Y latches will be transferred to
the counters and counting continues.
P13/TX0 input signal
P14/CNTR0 input signal
TX counter
count direction
down
up
相关PDF资料 |
PDF描述 |
|---|---|
| M37630E4FP | 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQFP44 |
| M37640E8FP | 8-BIT, OTPROM, 24 MHz, MICROCONTROLLER, PQFP80 |
| M37640E8FS | 8-BIT, OTPROM, 24 MHz, MICROCONTROLLER, PQFP80 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| M37630T-RFS | 功能描述:BOARD CONV FOR M37630 EMULATOR RoHS:否 类别:编程器，开发系统 >> 配件 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 标准包装:1 系列:- 附件类型:USB 至 1-Wire? RJ11 适配器 适用于相关产品:1-Wire? 设备 产品目录页面:1429 (CN2011-ZH PDF) |
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