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參數(shù)資料
| 型號(hào)： | LPC2917 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 32位微控制器 |
| 英文描述： | ARM9 microcontroller with CAN and LIN |
| 中文描述： | 具有CAN和LIN的ARM9微控制器 |
| 文件頁數(shù)： | 29/68頁 |
| 文件大?。?/td> | 384K |
| 代理商： | LPC2917 |
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LPC2917_19_1
NXP B.V. 2007. All rights reserved.
Preliminary data sheet
Rev. 1.01 — 15 November 2007
29 of 68
NXP Semiconductors
LPC2917/19
ARM9 microcontroller with CAN and LIN
8.4.6
General-purpose I/O
8.4.6.1
Overview
The LPC2917/19 contains four general-purpose I/O ports located at different peripheral
base addresses. In the 144-pin package all four ports are available. All I/O pins are
bi-directional, and the direction can be programmed individually. The I/O pad behavior
depends on the configuration programmed in the port function-select registers.
The key features are:
General-purpose parallel inputs and outputs
Direction control of individual bits
Synchronized input sampling for stable input-data values
All I/O defaults to input at reset to avoid any possible bus conflicts
8.4.6.2
Description
The general-purpose I/O provides individual control over each bi-directional port pin.
There are two registers to control I/O direction and output level. The inputs are
synchronized to achieve stable read-levels.
To generate an open-drain output, set the bit in the output register to the desired value.
Use the direction register to control the signal. When set to output, the output driver
actively drives the value on the output: when set to input the signal floats and can be
pulled up internally or externally.
8.4.6.3
GPIO pin description
The five GPIO ports in the LPC2917/19 have the pins listed below. The GPIO pins are
combined with other functions on the port pins of the LPC2917/19.
Table 17
shows the
GPIO pins.
Table 17.
Symbol
GPIO0 pin[31:0]
GPIO1 pin[31:0]
GPIO2 pin[27:0]
GPIO3 pin[15:0]
8.4.6.4
GPIO clock description
The GPIO modules are clocked by several clocks, all of which are derived from
BASE_SYS_CLK; CLK_SYS_PESS and CLK_SYS_GPIOx (x = 0-3), see
Section 7.2.2
.
Note that each GPIO has its own CLK__SYS_GPIOx branch clock for power
management. The frequency of all clocks CLK_SYS_GPIOx is identical to
CLK_SYS_PESS since they are derived from the same base clock BASE_SYS_CLK.
GPIO pins
Direction
in/out
in/out
in/out
in/out
Description
GPIO port x pins 31 to 0
GPIO port x pins 31 to 0
GPIO port x pins 27 to 0
GPIO port x pins 15 to 0
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相關(guān)代理商/技術(shù)參數(shù) |
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| LPC2917/01 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ARM9 microcontroller with CAN and LIN |
| LPC2917FBD144 | 制造商:NXP Semiconductors 功能描述:IC MCU 32BIT ARM968 SMD LQFP144 |
| LPC2917FBD144,551 | 功能描述:ARM微控制器 - MCU ARM968 512K FL/48K RAM LIN 2.0 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 |
| LPC2917FBD144/01 | 制造商:NXP Semiconductors 功能描述:MCU, 32BIT, ARM968E-S, 125MHZ, LQFP-144 制造商:NXP Semiconductors 功能描述:MCU, 32BIT, ARM968E-S, 125MHZ, LQFP-144, Controller Family/Series:LPC2900, Core Size:32bit, No. of I/O's:108, Supply Voltage Min:1.71V, Supply Voltage Max:1.89V, Digital IC Case Style:LQFP, No. of Pins:144, Program Memory Size:512KB, |
| LPC2917FBD144/01/, | 功能描述:ARM微控制器 - MCU ARM968 512K FL/48K 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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