您的位置：维库电子市场网 > Datasheet > LPC2148FBD64

LPC2148FBD64 Datasheet

  • LPC2148FBD64

  • Single-chip 16-bit/32-bit microcontrollers; up to 512 kB fla...

  • 185.31KB

  • 38页

  • PHILIPS

阅览下载 纠错 0

扫码查看芯片数据手册

上传产品规格书

PDF预览

Philips Semiconductors
LPC2141/42/44/46/48
Single-chip 16-bit/32-bit microcontrollers
6.18 Pulse width modulator
The PWM is based on the standard timer block and inherits all of its features, although
only the PWM function is pinned out on the LPC2141/42/44/46/48. The timer is designed
to count cycles of the peripheral clock (PCLK) and optionally generate interrupts or
perform other actions when speci铿乪d timer values occur, based on seven match registers.
The PWM function is also based on match register events.
The ability to separately control rising and falling edge locations allows the PWM to be
used for more applications. For instance, multi-phase motor control typically requires three
non-overlapping PWM outputs with individual control of all three pulse widths and
positions.
Two match registers can be used to provide a single edge controlled PWM output. One
match register (MR0) controls the PWM cycle rate, by resetting the count upon match.
The other match register controls the PWM edge position. Additional single edge
controlled PWM outputs require only one match register each, since the repetition rate is
the same for all PWM outputs. Multiple single edge controlled PWM outputs will all have a
rising edge at the beginning of each PWM cycle, when an MR0 match occurs.
Three match registers can be used to provide a PWM output with both edges controlled.
Again, the MR0 match register controls the PWM cycle rate. The other match registers
control the two PWM edge positions. Additional double edge controlled PWM outputs
require only two match registers each, since the repetition rate is the same for all PWM
outputs.
With double edge controlled PWM outputs, speci铿乧 match registers control the rising and
falling edge of the output. This allows both positive going PWM pulses (when the rising
edge occurs prior to the falling edge), and negative going PWM pulses (when the falling
edge occurs prior to the rising edge).
6.18.1 Features
鈥?/div>
Seven match registers allow up to six single edge controlled or three double edge
controlled PWM outputs, or a mix of both types.
鈥?/div>
The match registers also allow:
鈥?/div>
Continuous operation with optional interrupt generation on match.
鈥?/div>
Stop timer on match with optional interrupt generation.
鈥?/div>
Reset timer on match with optional interrupt generation.
鈥?/div>
Supports single edge controlled and/or double edge controlled PWM outputs. Single
edge controlled PWM outputs all go HIGH at the beginning of each cycle unless the
output is a constant LOW. Double edge controlled PWM outputs can have either edge
occur at any position within a cycle. This allows for both positive going and negative
going pulses.
鈥?/div>
Pulse period and width can be any number of timer counts. This allows complete
铿俥xibility in the trade-off between resolution and repetition rate. All PWM outputs will
occur at the same repetition rate.
鈥?/div>
Double edge controlled PWM outputs can be programmed to be either positive going
or negative going pulses.
9397 750 14985
漏 Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Preliminary data sheet
Rev. 01 鈥?3 October 2005
20 of 38

LPC2148FBD64相关型号PDF文件下载

  • 型号
    版本
    描述
    厂商
    下载
  • LPC2102
    英文版
    Philips Semiconductors [Single-chip 16-bit/32-bit microcont...
    PHILIPS
    LPC2102
  • LPC2103
    英文版
    LPC2103_Philips.pdf
    Philips
    LPC2103
  • LPC2104
    英文版
    Single-chip 32-bit microcontrollers; 128 kB ISP/IAP Flash wi...
    PHILIPS
    LPC2104
  • LPC2104
    英文版
    Single-chip 32-bit microcontrollers; 128 kB ISP/IAP Flash wi...
    PHILIPS [P...
    LPC2104
  • LPC2105
    英文版
    Single-chip 32-bit microcontrollers; 128 kB ISP/IAP Flash wi...
    PHILIPS
    LPC2105
  • LPC2105
    英文版
    Single-chip 32-bit microcontrollers; 128 kB ISP/IAP Flash wi...
    PHILIPS [P...
    LPC2105
  • LPC2106
    英文版
    Single-chip 32-bit microcontrollers; 128 kB ISP/IAP Flash wi...
    PHILIPS
    LPC2106
  • LPC2106
    英文版
    Single-chip 32-bit microcontrollers; 128 kB ISP/IAP Flash wi...
    PHILIPS [P...
    LPC2106
  • LPC2114
    英文版
    Single-chip 16/32-bit microcontrollers; 128/256 kB ISP/IAP F...
    PHILIPS
    LPC2114
  • LPC2114
    英文版
    Single-chip 16/32-bit microcontrollers; 128/256 kB ISP/IAP F...
    PHILIPS [P...
    LPC2114
  • LPC2119
    英文版
    Single-chip 16/32-bit microcontrollers; 128/256 kB ISP/IAP F...
    PHILIPS
    LPC2119
  • LPC2119
    英文版
    Single-chip 16/32-bit microcontrollers; 128/256 kB ISP/IAP F...
    PHILIPS [P...
    LPC2119
  • LPC2124
    英文版
    Single Chip 32-bit Microcontroller Erratasheet
    PHILIPS
    LPC2124
  • LPC2124
    英文版
    Single-chip 16/32-bit microcontrollers; 128/256 kB ISP/IAP F...
    PHILIPS [P...
    LPC2124
  • LPC2124
    英文版
    Single Chip 32-bit Microcontroller Erratasheet
    PHILIPS [P...
    LPC2124
  • LPC2129
    英文版
    Single-chip 16/32-bit microcontrollers; 128/256 kB ISP/IAP F...
    PHILIPS
    LPC2129
  • LPC2129
    英文版
    Single-chip 16/32-bit microcontrollers; 128/256 kB ISP/IAP F...
    PHILIPS [P...
    LPC2129
  • LPC2131
    英文版
    Single-chip 16/32-bit microcontrollers; 32/64/512 kB ISP/IAP...
    PHILIPS
    LPC2131
  • LPC2131
    英文版
    Single-chip 16/32-bit microcontrollers; 32/64/512 kB ISP/IAP...
    PHILIPS [P...
    LPC2131
  • LPC2132
    英文版
    Single-chip 16/32-bit microcontrollers; 32/64/512 kB ISP/IAP...
    PHILIPS
    LPC2132

您可能感兴趣的PDF文件资料

热门IC型号推荐

©2024 维库电子市场网（www.dzsc.com）　备案号：浙B2-20050339-1 经营许可证：浙B2-20210386版权声明
买家服务热线：0571-85317607 | 买家服务部QQ： QQ:1609526468
卖家服务热线：0571-85317607 | 卖家服务部QQ： QQ:331652727

扫码下载APP，
一键连接广大的电子世界。

在线人工客服

买家服务：
卖家服务：

0571-85317607

客服在线时间周一至周五
9:00-17:30

关注官方微信号，
第一时间获取资讯。

建议反馈
返回顶部

建议反馈

联系人：

联系方式：

按住滑块，拖拽到最右边
>>
感谢您向阿库提出的宝贵意见，您的参与是维库提升服务的动力！意见一经采纳，将有感恩红包奉上哦！

PDF纠错X

投诉电话：0571-85317607 投诉QQ：

如选匿名将无法为您反馈投诉结果，建议实名投诉！