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PPC405GP-3DE266CZ 参数 Datasheet PDF下载

PPC405GP-3DE266CZ图片预览
型号: PPC405GP-3DE266CZ
PDF下载: 下载PDF文件 查看货源
内容描述: 的Power PC 405GP嵌入式处理器 [Power PC 405GP Embedded Processor]
分类和应用: PC
文件页数/大小: 59 页 / 1340 K
品牌: AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
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Revision 2.03 – September 7, 2007  
405GP – Power PC 405GP Embedded Processor  
Data Sheet  
Signal Functional Description (Part 4 of 8)  
Multiplexed signals are shown in brackets following the first signal name assigned to each multiplexed ball.  
Notes:  
1. Receiver input has hysteresis.  
2. Must pull up. See “Pull-Up and Pull-Down Resistors” on page 34 for recommended termination values.  
3. Must pull down. See “Pull-Up and Pull-Down Resistors” on page 34 for recommended termination values.  
4. If not used, must pull up.  
5. If not used, must pull down.  
6. Strapping input during reset; pull up or pull down as required.  
7. Pull-up may be required. See “External Bus Control Signals” on page 34.  
Signal Name  
Description  
Peripheral chip select bank 0.  
I/O  
Type  
Notes  
5V tolerant  
3.3V LVTTL  
PerCS0  
O
7
Seven additional peripheral chip selects  
or  
General Purpose I/O. To access this function, software must toggle a  
DCR bit.  
5V tolerant  
PerCS1:7[GPIO10:16]  
PerOE  
O[I/O]  
O
1, 7  
7
3.3V LVTTL  
Used by either the peripheral controller or the DMA controller  
depending upon the type of transfer involved. When the PPC405GP  
is the bus master, it enables the selected device to drive the bus.  
5V tolerant  
3.3V LVTTL  
Used by the PPC405GP when not in external master mode, as output  
by either the peripheral controller or DMA controller depending upon  
the type of transfer involved. High indicates a read from memory, low  
indicates a write to memory.  
5V tolerant  
3.3V LVTTL  
PerR/W  
I/O  
1
Otherwise it used by the external master as an input to indicate the  
direction of data transfer.  
5V tolerant  
PerReady  
PerBLast  
Used by a peripheral slave to indicate it is ready to transfer data.  
I
1
3.3V LVTTL  
Used by the PPC405GP when not in external master mode,  
otherwise used by external master. Indicates the last transfer of a  
memory access.  
5V tolerant  
3.3V LVTTL  
I/O  
1, 7  
DMAReq0:3 are used by slave peripherals to indicate they are  
prepared to transfer data.  
5V tolerant  
DMAReq0:3  
DMAAck0:3  
I
1
6
1
3.3V LVTTL  
DMAAck0:3 are used by the PPC405GP to cause the DMA  
peripheral to transfer data.  
5V tolerant  
3.3V LVTTL  
O
5V tolerant  
3.3V LVTTL  
EOT0:3/TC0:3  
End Of Transfer/Terminal Count.  
I/O  
38  
AMCC  
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