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參數(shù)資料
| 型號(hào)： | LPC2939FBD208 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | ARM9 microcontroller with CAN, LIN, and USB |
| 中文描述： | 32-BIT, FLASH, 125 MHz, RISC MICROCONTROLLER, PQFP208 |
| 封裝： | 28 X 28 MM, 1.40 MM HEIGHT, PLASTIC, SOT-459, MS-026, LQFP-208 |
| 文件頁(yè)數(shù)： | 47/99頁(yè) |
| 文件大?。?/td> | 1945K |
| 代理商： | LPC2939FBD208 |
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LPC2939_3
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 03 — 7 April 2010
47 of 99
NXP Semiconductors
LPC2939
ARM9 microcontroller with CAN, LIN, and USB
The PWM block diagram in
Figure 10
shows the basic architecture of each PWM. PWM
functionality is split into two major parts, a APB domain and a PWM domain, both of which
run on clocks derived from the BASE_MSCSS_CLK. This split into two domains affects
behavior from a system-level perspective. The actual PWM and prescale counters are
located in the PWM domain but system control takes place in the APB domain.
The actual PWM consists of two counters; a 16-bit prescale counter and a 16-bit PWM
counter. The position of the rising and falling edges of the PWM outputs can be
programmed individually. The prescale counter allows high system bus frequencies to be
scaled down to lower PWM periods. Registers are available to capture the PWM counter
values on external events.
Note that in the Modulation and Sampling SubSystem, each PWM has its individual clock
source CLK_MSCSS_PWMx (x runs from 0 to 3). Both the prescale and the timer
counters within each PWM run on this clock CLK_MSCSS_PWMx, and all time references
are related to the period of this clock. See
Section 6.16
for information on generation of
these clocks.
6.15.5.2
Synchronizing the PWM counters
A mechanism is included to synchronize the PWM period to other PWMs by providing a
sync input and a sync output with programmable delay. Several PWMs can be
synchronized using the trans_enable_in/trans_enable_out and sync_in/sync_out ports.
See
Figure 8
for details of the connections of the PWM modules within the MSCSS in the
LPC2939. PWM 0 can be master over PWM 1; PWM 1 can be master over PWM 2, etc.
Fig 10. PWM block diagram
002aad837
APB system bus
IRQ pwm
IRQ capt_match
PWM
CONTROL
&
REGISTERS
update
capture data
PWM counter value
config data
IRQs
PWM,
COUNTER,
PRESCALE
COUNTER
&
SHADOW
REGISTERS
match outputs
capture inputs
trap input
carrier inputs
sync_in
sync_out
transfer_enable_in
transfer_enable_out
APB DOMAIN
PWM DOMAIN
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| LPC2939FBD208,551 | 功能描述:ARM微控制器 - MCU IC ARM9 MCU FLASH 768KB RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT |
| LPC2939FBD208551 | 制造商:NXP Semiconductors 功能描述:MCU ARM9 208LQFP |
| LPC2939FET208,551 | 功能描述:ARM微控制器 - MCU LPC2939FET208/TFBGA208/TRAYBDP RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT |
| LPC-2FS01 | 制造商:Honda Tsushin Kogyo Co Ltd 功能描述:CABLE CRIMPING TYPE FEMALE INSULATOR |
| LPC3130 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-cost, low-power ARM926EJ-S MCUs with high-speed USB 2.0 OTG, SD/MMC, and NAND flash controller |
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