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參數(shù)資料
| 型號： | PXA250 |
| 廠商： | Intel Corp. |
| 英文描述： | Intel-R PXA250 and PXA210 Applications Processors |
| 中文描述： | 英特爾- R的PXA250和PXA210應用處理器 |
| 文件頁數(shù)： | 20/46頁 |
| 文件大?。?/td> | 431K |
| 代理商： | PXA250 |
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PXA250 and PXA210
—
Electrical, Mechanical, and Thermal Specification
20
Datasheet
SDCKE[1]
OC
SDRAM and/or Synchronous Static Memory clock enable.
(output) Connect to
the clock enable pins of SDRAM. It is deasserted during sleep. SDCKE[1] is
always deasserted upon reset. The memory controller provides control register bits
for deassertion.
SDCLK[0]
OC
SDRAM and/or Synchronous Static Memory clocks.
(output) Connect to the
clock (CLK) pins of SMROM and SDRAM-timing Synchronous Flash. Connect
SDCLK[1] to the clock pins of SDRAM in bank pairs 0/1. It is driven by either the
internal memory controller clock or the internal memory controller clock divided by
2. At reset, all clock pins are free running at the divide by 2 clock speed and may
be turned off via free running control register bits in the memory controller. The
memory controller also provides control register bits for clock division and
deassertion of each SDCLK pin. SDCLK[0] control register assertion bit defaults to
on if the boot-time static memory bank 0 is configured for SMROM or SDRAM-
timing Synchronous Flash. SDCLK[1] control register assertion bit is always
deasserted on reset. SDCLK[1] can be Hi-Z, SDCLK[0] cannot.
SDCLK[1]
OCZ
nCS[5]/
GPIO[33]
ICOCZ
Static chip selects.
(output) Chip selects to static memory devices such as ROM
and Flash. Individually programmable in the memory configuration registers.
nCS[5:3] can be used with variable latency I/O devices.
nCS[4]/
GPIO[80]
ICOCZ
nCS[3]/
GPIO[79]
ICOCZ
nCS[2]/
GPIO[78]
ICOCZ
nCS[1]/
GPIO[15]
ICOCZ
nPWE/
GPIO[49]
ICOCZ
VLIO write enable (output). Used as the write enable signal for Variable Latency
I/O.
nCS[0]
ICOCZ
Static chip select 0.
(output) Chip select for the boot memory. nCS[0] is a
dedicated pin.
RD/nWR
OCZ
Read/Write for static interface.
(output) Signals that the current transaction is a
read or write.
RDY/
GPIO[18]
ICOCZ
Variable Latency I/O Ready pin.
(input) Notifies the memory controller when an
external bus device is ready to transfer data.
L_DD[8]/
GPIO[66]
ICOCZ
LCD display data.
(output) Transfers pixel information from the LCD Controller to
the external LCD panel.
Memory Controller alternate bus master request.
(input) Allows an external
device to request the system bus from the Memory Controller.
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 that it has been
granted the system bus.
LCD Controller Pins
L_DD(7:0)/
GPIO[65:58]
ICOCZ
LCD display data.
(outputs) Transfers pixel information from the LCD Controller to
the external LCD panel.
L_DD[8]/
GPIO[66]
ICOCZ
LCD display data.
(output) Transfers pixel information from the LCD Controller to
the external LCD panel.
Memory Controller alternate bus master request.
(input) Allows an external
device to request the system bus from the Memory Controller.
Table 4. Pin and Signal Descriptions for the PXA210 Applications Processor (Sheet 2 of 7)
Pin Name
Type
Signal Descriptions
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PXA255 | PXA255 Processor |
| PXA270 | Electrical, Mechanical, and Thermal Specification |
| PXAC37 | XA 16-bit microcontroller family 32K/1024 OTP CAN transport layer controller 1 UART, 1 SPI Port, CAN 2.0B, 32 CAN ID Filters, transport layer co-proce |
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| PY08-02 | INDUSTRIERELAIS FASSUNG PCB |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PXA250B2C400 | 制造商:Intel 功能描述:Microprocessor, 32 Bit, 256 Pin, Plastic, BGA |
| PXA250C0C400 | 制造商:Intel 功能描述:IC,MICROPROCESSOR,32-BIT,CMOS,BGA,256PIN,PLASTIC |
| PXA255 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:PXA255 Processor |
| 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 制造商全稱:Intel Corporation 功能描述:Electrical, Mechanical, and Thermal Specification |
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