參數(shù)資料
型號(hào)： PPC405EP-3LB266C
廠商： APPLIEDMICRO INC
元件分類(lèi)： 微控制器/微處理器
英文描述： PowerPC 405EP Embedded Processor
中文描述： 32-BIT, 266.66 MHz, RISC PROCESSOR, PBGA385
封裝： 31 X 31 MM, LEAD FREE, PLASTIC, EBGA-385
文件頁(yè)數(shù)： 30/50頁(yè)
文件大小： 373K
代理商： PPC405EP-3LB266C
PPC405EP – PowerPC 405EP Embedded Processor
30
AMCC
Revision 1.07 – September 10, 2007
Data Sheet
Unused I/Os
Strapping of some pins may be necessary when they are unused. Although the PPC405EP requires only the pull-
up and pull-down terminations as specified in the “Signal Functional Description” on page 31, good design practice
is to terminate all unused inputs or to configure I/Os such that they always drive. If unused, the peripheral, SDRAM,
and PCI buses should be configured and terminated as follows:
Peripheral interface—PerAddr03:31, PerData00:15, and all of the control signals are driven by default. Pull
up PerReady.
SDRAM—Program SDRAM0_CFG[EMDULR]=1 and SDRAM0_CFG[DCE]=1. This causes the PPC405EP
to actively drive all of the SDRAM address, data, and control signals.
PCI—The PCI pull-up requirements given in the Signal Functional Description apply only when the PCI
interface is being used. When the PCI bridge is unused, configure the PCI controller to park on the bus and
actively drive PCIAD31:00, PCIC3:0/BE3:0, and the remaining PCI control signals by doing the following:
- Strap the PPC405EP to disable the internal PCI arbiter.
- Individually pull up PCISErr, PCIPErr, PCITRDY, and PCIStop through 3.3k
Ω
resistors to +3.3V.
- Pull up PCIReq1:2 through a 3.3k
Ω
resistor to +3.3V.
- Pull down PCIReq0/Gnt through a 1k
Ω
resistor to GND.
External Bus Control Signals
All peripheral bus control signals (PerCS0:4, PerR/W, PerWBE0:1, PerOE, PerWE, PerBLast) are set to the high-
impedance state when ExtReset = 0. In addition, as detailed in the
PowerPC 405EP Embedded Processor User’s
Manual
, the peripheral bus controller can be programmed via EBC0_CFG to float some of these control signals
between transactions. As a result, a pull-up resistor should be added to those control signals where an undriven
state may affect any devices receiving that particular signal.
The following table lists all of the I/O signals provided by the PPC405EP. Please refer to “Signals Listed
Alphabetically” on page 13 for the pin number to which each signal is assigned.
相關(guān)PDF資料
PDF描述
PPC405EP-3LB266CZ PowerPC 405EP Embedded Processor
PPC405EP-3LB333C PowerPC 405EP Embedded Processor
PPC405EP-3LB333CZ PowerPC 405EP Embedded Processor
PPC405EX-NpAfffTx PowerPC 405EX Embedded Processor
PPC405EX-SpAfffTx PowerPC 405EX Embedded Processor
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PPC405EP-3LB266CZ 制造商:AppliedMicro 功能描述:MPU 405EP RISC 32-Bit 0.18um 266MHz 3.3V 385-Pin EBGA T/R 制造商:AMCC 功能描述:AMCPPC405EP-3LB266CZ 32B MPU EOL040910
PPC405EP-3LB333C 制造商:AMCC 功能描述:MPU 405EP RISC 32BIT 0.18UM 333MHZ 3.3V 385BGA - Trays 制造商:AMCC 功能描述:AMCPPC405EP-3LB333C 32 BIT POWER PCCORE
PPC405EP-3LB333CZ 制造商:AMCC 制造商全稱(chēng):Applied Micro Circuits Corporation 功能描述:PowerPC 405EP Embedded Processor
PPC405EX-CPA533T 制造商:AMCC 功能描述: 制造商:AppliedMicro 功能描述:
PPC405EX-NPA333T 制造商:AMCC 功能描述:32 BIT POWERPC CORE, UP TO 533 MHZ, 2 PCIE, 2 10/100/1G ETHE - Trays
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