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标题: PowerPC简介及编程(4) [打印本页]

作者: yuyang911220    时间: 2015-10-25 17:23     标题: PowerPC简介及编程(4)

五,PowerPC内核定义
双处理器结构既提供了程序运行的通用处理器,又提供了用于通信用处的特殊通信处理器(CPM).
32位PowerPC结构特点


名称

内存物理地址

备注

SDRAM0x00000000~0x7FFFFFFF
PCI0x80000000~0xEF5FFFFF

Internal Peripherals

0xEF600000~0xEFFFFFFF
UART.....
..........

External Peripherals

0xF0000000~0xFF7FFFFF
NVRAM/RTC

  0xF0000000~0xF0001FFF   

(8K)下画线为片选
Keybord/Mouse0xF0100000~0xF0100001下画线为片选
FPGA_INT_ST..0xF0300000~0xF0300000下画线为片选
FPGA_INT_EN..0xF0300001~0xF0300001下画线为片选

Socket Flash

0xFFF80000~0xFFFFFFFF512K

SRAM

0xFFF00000~0xFFF7FFFF512K(可通过Swich与Socket Flash 切换)



PriorityException TypeCause
1Development portnonmaskable interrupt Signal from the development port
2System resetinterrupt IRQ0 assertion
3Instruction-related exceptionsInstruction processing
4Peripheral breakpoint request or development port maskable interruptBreakpoint signal from any peripheral
5External interrupt (masked if MSR[EE] = 0) Signal from the interrupt controller
6Decrementer interrupt(masked if MSR[EE] = 0)Decrementer request

 

中断

极性触发方式

中断源

0正(High)电平(Level)UART 0
1正(High)电平(Level)UART 1
2正(High)电平(Level)IIC
3正(High)电平(Level)External Master
4正(High)电平(Level)PCI
5正(High)电平(Level)DMA Channel 0
6正(High)电平(Level)DMA Channel 1
7正(High)电平(Level)DMA Channel 2
8正(High)电平(Level)DMA Channel 3
9正(High)电平(Level)MAL Wake UP
10正(High)电平(Level)MAL SERR
11正(High)电平(Level)MAL TXEOB
12正(High)电平(Level)MAL RXEOB
13正(High)电平(Level)MAL TXDE
14正(High)电平(Level)MAL TXDE
15正(High)电平(Level)Ethernet
16正(High)电平(Level)External PCI SERR
17正(High)电平(Level)ECC Correctalbe Error
18正(High)电平(Level)PCI Power Management
....Reserved

25ProgrammableProgrammableExternal IRQ 0
26ProgrammableProgrammableExternal IRQ 1
27ProgrammableProgrammableExternal IRQ 2
28ProgrammableProgrammableExternal IRQ 3
29ProgrammableProgrammableExternal IRQ 4
30ProgrammableProgrammableExternal IRQ 5
31ProgrammableProgrammableExternal IRQ 6






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