ters. Each PWM o" />
參數(shù)資料
型號： 101-0533
廠商： Rabbit Semiconductor
文件頁數(shù)： 3/110頁
文件大小： 0K
描述： KIT DEV RABBIT3000/RCM3100
標準包裝： 1
系列： RabbitCore 3000
類型： MPU 模塊
適用于相關(guān)產(chǎn)品： RCM3100
所含物品： RabbitCore 模塊、開發(fā)板、交流適配器、纜線和 Dynamic C? 光盤
其它名稱： 316-1020
94
RabbitCore RCM3100
E.4 PWM Outputs
The Pulse-Width Modulator consists of a 10-bit free-running counter and four width regis-
ters. Each PWM output is high for n + 1 counts out of the 1024-clock count cycle, where n
is the value held in the width register. The PWM output high time can optionally be spread
throughout the cycle to reduce ripple on the externally filtered PWM output. The PWM is
clocked by the output of Timer A9. The spreading function is implemented by dividing
each 1024-clock cycle into four quadrants of 256 clocks each. Within each quadrant, the
Pulse-Width Modulator uses the eight MSBs of each pulse-width register to select the base
width in each of the quadrants. This is the equivalent to dividing the contents of the pulse-
width register by four and using this value in each quadrant. To get the exact high time, the
Pulse-Width Modulator uses the two LSBs of the pulse-width register to modify the high
time in each quadrant according to Table E-3 below. The “n/4” term is the base count, and
is formed from the eight MSBs of the pulse-width register.
The diagram below shows a PWM output for several different width values for both
modes of operation. Operation in the spread mode reduces the filtering requirements on
the PWM output in most cases.
Figure E-1. PWM Outputs for Various Normal and Spread Modes
Table E-3. PWM Outputs
Pulse Width LSBs
1st
2nd
3rd
4th
00
n/4 + 1
n/4
01
n/4 + 1
n/4
n/4 + 1
n/4
10
n/4 + 1
n/4
11
n/4 + 1
n=255, normal
n=256, spread
n=255, spread
(256 counts)
(64 counts)
(65 counts)
(64 counts)
(64 counts)
(64 counts)
n=257, spread
(65 counts)
(64 counts)
(65 counts)
(64 counts)
n=258, spread
(65 counts)
(64 counts)
n=259, spread
(65 counts)
n=259, normal
(260 counts)
相關(guān)PDF資料
PDF描述
101-1158 KIT DEVELOPMENT INT'L RCM4100
101-0530 KIT TOOL FOR LP3500 INTL
0210390926 CABLE JUMPER 1MM .102M 23POS
ECM18DTBS CONN EDGECARD 36POS R/A .156 SLD
LFXP10C-L-EV BOARD EVAL LATTICEXP10C STD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
101-0534 功能描述:開發(fā)板和工具包 - 其他處理器 RCM3100 DEV KIT INT’L VERSION RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
101-0535 功能描述:單板計算機 OP7200 Touchscreen RoHS:否 制造商:Ampro By ADLINK 外觀尺寸:EPIC 處理器類型:Intel Atom D510 頻率:1.66 GHz 存儲容量:2 GB (max) 存儲類型:DDR2, L2 Cache 接口類型:Ethernet, PS/2, SATA, Serial, USB 工作電源電壓:5 V, 12 V 功耗:13 W 最大工作溫度:+ 70 C 尺寸:165.1 mm x 114.3 mm
101-0536 功能描述:單板計算機 OP7210 RoHS:否 制造商:Ampro By ADLINK 外觀尺寸:EPIC 處理器類型:Intel Atom D510 頻率:1.66 GHz 存儲容量:2 GB (max) 存儲類型:DDR2, L2 Cache 接口類型:Ethernet, PS/2, SATA, Serial, USB 工作電源電壓:5 V, 12 V 功耗:13 W 最大工作溫度:+ 70 C 尺寸:165.1 mm x 114.3 mm
101-0537 功能描述:單板計算機 OP7200 TS 512K/512K RoHS:否 制造商:Ampro By ADLINK 外觀尺寸:EPIC 處理器類型:Intel Atom D510 頻率:1.66 GHz 存儲容量:2 GB (max) 存儲類型:DDR2, L2 Cache 接口類型:Ethernet, PS/2, SATA, Serial, USB 工作電源電壓:5 V, 12 V 功耗:13 W 最大工作溫度:+ 70 C 尺寸:165.1 mm x 114.3 mm
101-0538 功能描述:單板計算機 OP7210 w/512K/512K RoHS:否 制造商:Ampro By ADLINK 外觀尺寸:EPIC 處理器類型:Intel Atom D510 頻率:1.66 GHz 存儲容量:2 GB (max) 存儲類型:DDR2, L2 Cache 接口類型:Ethernet, PS/2, SATA, Serial, USB 工作電源電壓:5 V, 12 V 功耗:13 W 最大工作溫度:+ 70 C 尺寸:165.1 mm x 114.3 mm
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*