參數(shù)資料
型號(hào)： LPC2194
廠商： NXP Semiconductors N.V.
英文描述： Single-chip 16/32-bit microcontrollers 256 kB ISP/IAP Flash with 10-bit ADC and CAN
中文描述： 單片16/32位微控制器，256 KB的ISP / IAP閃存的10位ADC和CAN
文件頁(yè)數(shù)： 21/33頁(yè)
文件大小： 158K
代理商： LPC2194
Philips Semiconductors
LPC2194
Single-chip 16/32-bit microcontrollers
Preliminary data
Rev. 01 — 06 February 2004
21 of 33
9397 750 12757
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Pulse period and width can be any number of timer counts. This allows complete
flexibility in the trade-off between resolution and repetition rate. All PWM outputs
will occur at the same repetition rate.
Double edge controlled PWM outputs can be programmed to be either positive
going or negative going pulses.
Match register updates are synchronized with pulse outputs to prevent generation
of erroneous pulses. Software must ‘release’ new match values before they can
become effective.
May be used as a standard timer if the PWM mode is not enabled.
A 32-bit Timer/Counter with a programmable 32-bit Prescaler.
6.20 System control
6.20.1
Crystal oscillator
The oscillator supports crystals in the range of 1 MHz to 30 MHz. The oscillator
output frequency is called f
osc
and the ARM processor clock frequency is referred to
as cclk for purposes of rate equations, etc. f
osc
and cclk are the same value unless
the PLL is running and connected. Refer to
Section 6.20.2 “PLL”
for additional
information.
6.20.2
PLL
The PLL accepts an input clock frequency in the range of 10 MHz to 25 MHz. The
input frequency is multiplied up into the range of 10 MHz to 60 MHz with a Current
Controlled Oscillator (CCO). The multiplier can be an integer value from 1 to 32 (in
practice, the multiplier value cannot be higher than 6 on this family of microcontrollers
due to the upper frequency limit of the CPU). The CCO operates in the range of
156 MHz to 320 MHz, so there is an additional divider in the loop to keep the CCO
within its frequency range while the PLL is providing the desired output frequency.
The output divider may be set to divide by 2, 4, 8, or 16 to produce the output clock.
Since the minimum output divider value is 2, it is insured that the PLL output has a
50% duty cycle.The PLL is turned off and bypassed following a chip Reset and may
be enabled by software. The program must configure and activate the PLL, wait for
the PLL to Lock, then connect to the PLL as a clock source.
6.20.3
Reset and wake-up timer
Reset has two sources on the LPC2194: the RESET pin and Watchdog Reset. The
RESET pin is a Schmitt trigger input pin with an additional glitch filter. Assertion of
chip Reset by any source starts the Wake-up Timer (see Wake-up Timer description
below), causing the internal chip reset to remain asserted until the external Reset is
de-asserted, the oscillator is running, a fixed number of clocks have passed, and the
on-chip Flash controller has completed its initialization.
When the internal Reset is removed, the processor begins executing at address 0,
which is the Reset vector. At that point, all of the processor and peripheral registers
have been initialized to predetermined values.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LPC2194HBD64 制造商:NXP Semiconductors 功能描述:MCU 32BIT ARM7 256K FLASH LQFP64
LPC2194HBD64,151 功能描述:ARM微控制器 - MCU PREF PART LPC2194HBD64/01-S 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
LPC2194HBD64/00 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 16/32-bit microcontroller; 256 kB ISP/IAP flash with 10-bit ADC and CAN
LPC2194HBD64/01 制造商:NXP Semiconductors 功能描述:MCU, 16BIT/32BIT, 60MHZ, LQFP-64 制造商:NXP Semiconductors 功能描述:MCU, 16BIT/32BIT, 60MHZ, LQFP-64, Controller Family/Series:LPC2100, Core Size:16 制造商:NXP Semiconductors 功能描述:MCU, 16BIT/32BIT, 60MHZ, LQFP-64, Controller Family/Series:LPC2100, Core Size:16bit / 32bit, No. of I/O's:46, Supply Voltage Min:1.65V, Supply Voltage Max:1.95V, Digital IC Case Style:LQFP, No. of Pins:64, Program Memory Size:256KB,
LPC2194HBD64/01,15 功能描述:ARM微控制器 - MCU ARM7 256KF/16KR/CAN 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
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