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参数资料
| 型号： | PXA255 |
| 厂商： | Intel Corp. |
| 英文描述： | PXA255 Processor |
| 中文描述： | PXA255处理器 |
| 文件页数： | 12/40页 |
| 文件大小： | 1191K |
| 代理商： | PXA255 |
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Package Information
12
Intel PXA255 Processor
Electrical, Mechanical, and Thermal Specification
L_DD[9]/
GPIO[67]
ICOCZ
LCD display data.
(output) Transfers pixel information
from the LCD controller to the external LCD panel.
MMC chip select 0.
(output) Chip select 0 for the MMC
controller.
Pulled High -
Note[1]
Note [3]
L_DD[10]/
GPIO[68]
ICOCZ
LCD display data.
(output) Transfers pixel information
from the LCD controller to the external LCD panel.
MMC chip select 1.
(output) Chip select 1 for the MMC
controller.
Pulled High -
Note[1]
Note [3]
L_DD[11]/
GPIO[69]
ICOCZ
LCD display data.
(output) Transfers pixel information
from the LCD controller to the external LCD panel.
MMC clock.
(output) Clock for the MMC controller.
Pulled High -
Note[1]
Note [3]
L_DD[12]/
GPIO[70]
ICOCZ
LCD display data.
(output) Transfers pixel information
from the LCD controller to the external LCD panel.
RTC clock.
(output) Real-time clock 1 Hz tick.
Pulled High -
Note[1]
Note [3]
L_DD[13]/
GPIO[71]
ICOCZ
LCD display data.
(output) Transfers pixel information
from the LCD controller to the external LCD panel.
3.6864 MHz clock.
(output) Output from 3.6864 MHz
oscillator.
Pulled High -
Note[1]
Note [3]
L_DD[14]/
GPIO[72]
ICOCZ
LCD display data.
(output) Transfers pixel information
from the LCD controller to the external LCD panel.
32 kHz clock.
(output) Output from the 32 kHz oscillator.
Pulled High -
Note[1]
Note [3]
L_DD[15]/
GPIO[73]
ICOCZ
LCD display data.
(output) Transfers pixel information
from the LCD controller to the external LCD panel.
Memory Controller grant.
(output) Notifies an external
device it has been granted the system bus.
Pulled High -
Note[1]
Note [3]
L_FCLK/
GPIO[74]
ICOCZ
LCD frame clock.
(output) Indicates the start of a new
frame. Also referred to as Vsync.
Pulled High -
Note[1]
Note [3]
L_LCLK/
GPIO[75]
ICOCZ
LCD line clock.
(output) Indicates the start of a new line.
Also referred to as Hsync.
Pulled High -
Note[1]
Note [3]
L_PCLK/
GPIO[76]
ICOCZ
LCD pixel clock.
(output) Clocks valid pixel data into the
LCD line-shift buffer.
Pulled High -
Note[1]
Note [3]
L_BIAS/
GPIO[77]
ICOCZ
AC bias drive.
(output) Notifies the panel to change the
polarity for some passive LCD panel. For TFT panels,
this signal indicates valid pixel data.
Pulled High -
Note[1]
Note [3]
Full Function UART Pins
FFRXD/
GPIO[34]
ICOCZ
Full function UART receive.
(input)
MMC chip select 0.
(output) Chip select 0 for the MMC
Controller.
Pulled High -
Note[1]
Note [3]
FFTXD/
GPIO[39]
ICOCZ
Full Function UART transmit.
(output)
MMC chip select 1.
(output) Chip select 1 for the MMC
Controller.
Pulled High -
Note[1]
Note [3]
FFCTS/
GPIO[35]
ICOCZ
Full function UART clear-to-send.
(input)
Pulled High -
Note[1]
Note [3]
FFDCD/
GPIO[36]
ICOCZ
Full function UART data-carrier-detect.
(input)
Pulled High -
Note[1]
Note [3]
FFDSR/
GPIO[37]
ICOCZ
Full function UART data-set-ready.
(input)
Pulled High -
Note[1]
Note [3]
Table 3. Pin and Signal Descriptions for the PXA255 Processor (Sheet 4 of 9)
Pin Name
Type
Signal Descriptions
Reset State
Sleep State
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PXA25VC22RMH70TP | 制造商:United Chemi-Con Inc 功能描述:Cap Aluminum 22uF 25V 20% (8 X 6.7mm) SMD 0.05 Ohm 1800mA 2000 hr 105°C T/R |
| PXA270 | 制造商:INTEL 制造商全称:Intel Corporation 功能描述:Electrical, Mechanical, and Thermal Specification |
| PXA300 | 制造商:Marvell 功能描述: |
| PXA310 | 制造商:MARVELL 制造商全称:MARVELL 功能描述:Rich Multimedia with Scalable Performance up to 624 MHz for Cost-Effective and Power-Effi cient Secure 3.5G Smartphones |
| PXA320 | 制造商:MARVELL 制造商全称:MARVELL 功能描述:Cost-Effective, Scalable Performance up to 806 MHz for Power-Efficient, High-End Multimedia Handsets, Embedded Solutions, and Enterprise-Class Devices |
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