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参数资料
| 型号： | 440GP |
| 厂商： | Applied Micro Circuits Corp. |
| 英文描述： | Power PC 440GP Embedded Processor |
| 中文描述： | 440GP的Power PC嵌入式处理器 |
| 文件页数： | 79/83页 |
| 文件大小： | 773K |
| 代理商： | 440GP |
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440GP – Power PC 440GP Embedded Processor
80
AMCC
Revision 1.07 – October 4, 2007
Data Sheet
Initialization
The PPC440GP provides the option for setting initial parameters based on default values or by reading them from
a slave PROM attached to the IIC0 bus (see “Serial EEPROM” below). Some of the default values can be altered
by strapping on external pins (see “Strapping” below).
Strapping
While the SysReset input pin is low (system reset), the state of certain I/O pins is read to enable certain default
initial conditions prior to PPC440GP start-up. The actual capture instant is the nearest reference clock edge before
the deassertion of reset. These pins must be strapped using external pull-up (logical 1) or pull-down (logical 0)
resistors to select the desired default conditions. They are used for strap functions only during reset. Following
reset they are used for normal functions.
The following table lists the strapping pins along with their functions and strapping options:
Serial EEPROM
During reset, initial conditions other than those obtained from the strapping pins can be read from a ROM device
connected to the IIC0 port. At the de-assertion of reset, if the bootstrap controller is enabled, the PPC440GP
sequentially reads 16 bytes from the ROM device on the IIC0 port and sets the SYS0and SYS1 registers
accordingly. Otherwise, the default values set in the STRP0 and STRP1 registers are used for initialization.
The initialization settings and their default values are covered in detail in the PowerPC 440GP Embedded
Processor User’s Manual.
Strapping Pin Assignments
Function
Option
Ball Strapping
V24
(UART0_DCD)
Bootstrap controller
Disabled
0
Enabled
1
V02
(UART0_DSR)
IIC0 slave address that will respond with boot data
0x54
0
0x50
1
相关PDF资料 |
PDF描述 |
|---|---|
| 440GRX | PowerPC 440GRx Embedded Processor |
| 440GR | Power PC 440GR Embedded Processor |
| 440GX | Power PC 440GX Embedded Processor |
| 440SPE | PowerPC 440SPe Embedded Processor |
| 440SP | PowerPC 440SP Embedded Processor |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 440GR | 制造商:AMCC 制造商全称:Applied Micro Circuits Corporation 功能描述:Power PC 440GR Embedded Processor |
| 440GRX | 制造商:AMCC 制造商全称:Applied Micro Circuits Corporation 功能描述:PowerPC 440GRx Embedded Processor |
| 440GS001NF1934-4 | 功能描述:环形MIL规格后盖 CRIMIP RING ADPTR DC STRAIGHT RoHS:否 制造商:Amphenol PCD MIL 类型:MIL-DTL-38999 III, IV 系列:AS85049 产品类型:Environmental EMI/RFI Backshells 外壳类型:Straight 外壳大小:18 外壳材质:Aluminum Alloy |
| 440GS001NF2535-4 | 功能描述:环形MIL规格后盖 CRIMIP RING ADPTR DC STRAIGHT RoHS:否 制造商:Amphenol PCD MIL 类型:MIL-DTL-38999 III, IV 系列:AS85049 产品类型:Environmental EMI/RFI Backshells 外壳类型:Straight 外壳大小:18 外壳材质:Aluminum Alloy |
| 440GS031B2912-4 | 制造商:Glenair Inc 功能描述:Shrink Boot Adapters 180° 29 Shell Size Olive Drab Cadmium Aluminum Direct 制造商:Glenair 功能描述:Shrink Boot Adapters 180° 29 Shell Size Olive Drab Cadmium Aluminum Direct |
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