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參數(shù)資料
| 型號： | LPC2157FBD100 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Single-chip 16-bit-32-bit microcontrollers; 512 kB flash, with 32 segment x 4 LCD driver |
| 中文描述： | 32-BIT, FLASH, 60 MHz, RISC MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT407-1, LQFP-100 |
| 文件頁數(shù)： | 29/45頁 |
| 文件大?。?/td> | 220K |
| 代理商： | LPC2157FBD100 |
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LPC2157_2158_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 9 February 2009
29 of 45
NXP Semiconductors
LPC2157/2158
Single-chip 16-bit/32-bit microcontrollers
6.21.11
Output bank selector
The LCD controller includes a RAM bank switching feature in the static and 1:2 drive
modes. In the static drive mode, the BANK SELECT command may request the contents
of bit 2 to be selected for display instead of the contents of bit 0. In 1:2 mode, the contents
of bits 2 and 3 may be selected instead of bits 0 and 1. This allows display information to
be prepared in an alternative bank and then selected for display when it is assembled.
6.21.12
Input bank selector
The input bank selector loads display data into the display RAM based on the selected
LCD drive configuration. The BANK SELECT command can be used to load display data
in bit 2 in static drive mode or in bits 2 and 3 in 1:2 mode. The input bank selector
functions are independent of the output bank selector.
6.21.13
Blinker
The LCD controller has a very versatile display blinking capability. The whole display can
blink at a frequency selected by the BLINK command. Each blink frequency is a multiple
integer value of the clock frequency; the ratio between the clock frequency and blink
frequency depends on the blink mode selected, as shown in
Table 5
.
An additional feature allows an arbitrary selection of LCD segments to be blinked in the
static and 1:2 drive modes. This is implemented without any communication overheads by
the output bank selector which alternates the displayed data between the data in the
display RAM bank and the data in an alternative RAM bank at the blink frequency. This
mode can also be implemented by the BLINK command.
The entire display can be blinked at a frequency other than the nominal blink frequency by
sequentially resetting and setting the display enable bit E at the required rate using the
MODE SET command.
Blink modes 0.5 Hz, 1 Hz and 2 Hz, and nominal blink frequencies 0.5 Hz, 1 Hz and 2 Hz
correspond to an oscillator frequency (f
osc(ctrl)LCD
) of 1536 Hz at pin CLK. The oscillator
frequency range is 397 Hz to 3046 Hz.
6.21.13.1
I
2
C-bus controller
The LCD controller acts as an I
2
C-bus slave receiver. In the LPC2157/2158 the hardware
subaddress inputs A0, A1 and A2 are tied to V
SS
setting the hardware subaddress = 0.
6.21.14
Input filters
To enhance noise immunity in electrically adverse environments, RC low-pass filters are
provided on the SDA and SCL lines.
Table 5.
Blink mode
Off
2 Hz
1 Hz
0.5 Hz
Blinking frequencies
Normal operating mode ratio
-
f
osc(ctrl)LCD
/768
f
osc(ctrl)LCD
/1536
f
osc(ctrl)LCD
/3072
Normal blink frequency
blinking off
2 Hz
1 Hz
0.5 Hz
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LPC2157FBD100,551 | 功能描述:ARM微控制器 - MCU 512K FL/32K RAM ADC/DAC LCD 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 最大時鐘頻率:72 MHz 程序存儲器大小: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 |
| LPC2158 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 16-bit/32-bit microcontrollers; 512 kB flash, with 32 segment x 4 LCD driver |
| LPC2158FBD100 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 16-bit/32-bit microcontrollers; 512 kB flash, with 32 segment x 4 LCD driver |
| LPC2158FBD100,551 | 功能描述:ARM微控制器 - MCU 512K FL/40K RAM 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 最大時鐘頻率:72 MHz 程序存儲器大小: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 |
| LPC2158FBD100-S | 功能描述:ARM微控制器 - MCU 512K FL/40K RAM USB LCD 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 最大時鐘頻率:72 MHz 程序存儲器大小: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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