參數(shù)資料
型號: EP9315-IBZ
廠商: Cirrus Logic Inc
文件頁數(shù): 55/106頁
文件大?。?/td> 0K
描述: IC ARM9 SOC ENH UNIV 352PBGA
標準包裝: 40
系列: EP9
核心處理器: ARM9
芯體尺寸: 16/32-位
速度: 200MHz
連通性: EBI/EMI,EIDE,以太網(wǎng),I²C,IrDA,鍵盤/觸摸屏,PCMCIA,SPI,UART/USART,USB
外圍設(shè)備: AC'97,DMA,I²S,LCD,LED,MaverickKey,POR,PWM,WDT
輸入/輸出數(shù): 16
程序存儲器類型: ROMless
RAM 容量: 32K x 8
電壓 - 電源 (Vcc/Vdd): 1.65 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x12b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 352-BGA
包裝: 托盤
配用: 598-1144-ND - KIT DEVELOPMENT EP9315 ARM9
其它名稱: 598-1263
2-14
DS785UM1
Copyright 2007 Cirrus Logic
ARM920T Core and Advanced High-Speed Bus (AHB)
EP93xx User’s Guide
2
User mode in Thumb state limits access to the low registers r0-r7. To access to the high
registers, the ARM Core must first revert to the ARM state. The high registers are:
r0-r12: General purpose read/write 32-bit registers
r13 (sp): Stack Pointer
r14 (lr): Link Register
r15 (pc): Program Counter
cpsr: Current Program Status Register containing condition codes and operating modes
Table 2-5. Register Organization Summary
Privileged Modes
Exception Modes
User
System
Supervisor
Abort
Undefined
IRQ
FIQ
r0
Thumb
state low
registers
r1
r2
r3
r4
r5
r6
r7
r8
r8_fiq
Thumb
state high
registers
r9
r9_fiq
r10
r10_fiq
r11
r11_fiq
r12
r12_fiq
r13(sp)
r13
r13_svc
r13_abt
r13_und
r13_irq
r13_fiq
r14(lr)
r14
r14_svc
r14_abt
r14_und
r14_irq
r14_fiq
r15(pc)
pc
cpsr
spsr_svc
spsr_abt
spsr_und
spsr_irq
spsr_fiq
Note: Colored areas represent banked registers.
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