- 您现在的位置：买卖IC网 > PDF目录80531 > MC68332VFC20 (FREESCALE SEMICONDUCTOR INC) 32-BIT, 20 MHz, MICROCONTROLLER, PQFP132 PDF资料下载
参数资料
| 型号： | MC68332VFC20 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 20 MHz, MICROCONTROLLER, PQFP132 |
| 封装： | 0.950 X 0.950 INCH, 0.025 INCH PITCH, PLASTIC, QFP-132 |
| 文件页数： | 59/109页 |
| 文件大小： | 787K |
| 代理商： | MC68332VFC20 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页当前第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页
MC68332
MOTOROLA
MC68332TS/D
53
5.1.2 Input Capture/Input Transition Counter (ITC)
Any channel of the TPU can capture the value of a specified TCR upon the occurrence of each transition
or specified number of transitions, and then generate an interrupt request to notify the CPU. A channel
can perform input captures continually, or a channel can detect a single transition or specified number
of transitions, then cease channel activity until reinitialization. After each transition or specified number
of transitions, the channel can generate a link to a sequential block of up to eight channels. The user
specifies a starting channel of the block and the number of channels within the block. The generation
of links depends on the mode of operation. In addition, after each transition or specified number of tran-
sitions, one byte of the parameter RAM (at an address specified by channel parameter) can be incre-
mented and used as a flag to notify another channel of a transition.
5.1.3 Output Compare (OC)
The output compare function generates a rising edge, falling edge, or a toggle of the previous edge in
one of three ways:
1.
Immediately upon CPU initiation, thereby generating a pulse with a length equal to a program-
mable delay time.
2.
At a programmable delay time from a user-specified time.
3.
Continuously. Upon receiving a link from a channel, OC references, without CPU interaction, a
specifiable period and calculates an offset:
Offset = Period
Ratio
where Ratio is a parameter supplied by the user.
This algorithm generates a 50% duty-cycle continuous square wave with each high/low time equal to
the calculated OFFSET. Due to offset calculation, there is an initial link time before continuous pulse
generation begins.
5.1.4 Pulse-Width Modulation (PWM)
The TPU can generate a pulse-width modulation waveform with any duty cycle from zero to 100% (with-
in the resolution and latency capability of the TPU). To define the PWM, the CPU provides one param-
eter that indicates the period and another parameter that indicates the high time. Updates to one or both
of these parameters can direct the waveform change to take effect immediately, or coherently beginning
at the next low-to-high transition of the pin.
5.1.5 Synchronized Pulse-Width Modulation (SPWM)
The TPU generates a PWM waveform in which the CPU can change the period and/or high time at any
time. When synchronized to a time function on a second channel, the synchronized PWM low-to-high
transitions have a time relationship to transitions on the second channel.
5.1.6 Period Measurement with Additional Transition Detect (PMA)
This function and the following function are used primarily in toothed-wheel speed-sensing applications,
such as monitoring rotational speed of an engine. The period measurement with additional transition
detect function allows for a special-purpose 23-bit period measurement. It can detect the occurrence of
an additional transition (caused by an extra tooth on the sensed wheel) indicated by a period measure-
ment that is less than a programmable ratio of the previous period measurement.
Once detected, this condition can be counted and compared to a programmable number of additional
transitions detected before TCR2 is reset to $FFFF. Alternatively, a byte at an address specified by a
channel parameter can be read and used as a flag. A nonzero value of the flag indicates that TCR2 is
to be reset to $FFFF once the next additional transition is detected.
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相关PDF资料 |
PDF描述 |
|---|---|
| M30302MCP-XXXGP | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100 |
| M30302MEP-XXXFP | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100 |
| MPC8378ECVRAGDA | 32-BIT, 266 MHz, MICROPROCESSOR, PBGA689 |
| MB90587CPMC | MICROCONTROLLER, PQFP100 |
| MB95F212HPH-G-SNE2 | MICROCONTROLLER, PDIP8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC68332VFV16 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:32-Bit Modular Microcontroller |
| MC68332VFV20 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:32-Bit Modular Microcontroller |
| MC68334 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Technical Supplement |
| MC68334GCEH16 | 功能描述:IC MCU 16MHZ 2K RAM 132-PQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:M683xx 标准包装:1 系列:87C 核心处理器:MCS 51 芯体尺寸:8-位 速度:16MHz 连通性:SIO 外围设备:- 输入/输出数:32 程序存储器容量:8KB（8K x 8） 程序存储器类型:OTP EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4 V ~ 6 V 数据转换器:- 振荡器型:外部 工作温度:0°C ~ 70°C 封装/外壳:44-DIP 包装:管件 其它名称:864285 |
| MC68334GCEH16 | 制造商:Freescale Semiconductor 功能描述:Microcontroller |
发布紧急采购，3分钟左右您将得到回复。