參數(shù)資料
型號(hào): MC68HC001EI10
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 6/189頁(yè)
文件大?。?/td> 0K
描述: IC MPU 16BIT 10MHZ 68-PLCC
標(biāo)準(zhǔn)包裝: 18
系列: M680x0
處理器類型: M680x0 32-位
速度: 10MHz
電壓: 3.3V,5V
安裝類型: 表面貼裝
封裝/外殼: 68-LCC(J 形引線)
供應(yīng)商設(shè)備封裝: 68-PLCC(25x25)
包裝: 管件
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6- 18
M68000 8-/16-/32-BIT MICROPROCESSORS USER'S MANUAL
MOTOROLA
.
PROGRAM COUNTER (LOW)
PROGRAM COUNTER (HIGH)
0
STATUS REGISTER
VECTOR OFFSET
1000
SPECIAL STATUS WORD
FAULT ADDRESS (HIGH)
15
14
13 12
11
10
9
8
765
4321
FAULT ADDRESS (LOW)
UNUSED, RESERVED
DATA OUTPUT BUFFER
DATA INPUT BUFFER
VERSION
NUMBER
INSTRUCTION INPUT BUFFER
UNUSED, RESERVED
INTERNAL INFORMATION, 16 WORDS
SP
NOTE: The stack pointer is decremented by 29 words, although only 26
words of information are actually written to memory. The three
additional words are reserved for future use by Motorola.
Figure 6-8. Exception Stack Order (Bus and Address Error)
The value of the saved program counter does not necessarily point to the instruction that
was executing when the bus error occurred, but may be advanced by as many as five
words. This incrementing is caused by the prefetch mechanism on the MC68010 that
always fetches a new instruction word as each previously fetched instruction word is used.
However, enough information is placed on the stack for the bus error exception handler to
determine why the bus fault occurred. This additional information includes the address
being accessed, the function codes for the access, whether it was a read or a write
access, and the internal register included in the transfer. The fault address can be used by
an operating system to determine what virtual memory location is needed so that the
requested data can be brought into physical memory. The RTE instruction is used to
reload the internal state of the processor at the time of the fault. The faulted bus cycle is
then rerun, and the suspended instruction is completed. If the faulted bus cycle is a read-
modify-write, the entire cycle is rerun, whether the fault occurred during the read or the
write operation.
An alternate method of handling a bus error is to complete the faulted access in software.
Using this method requires the special status word, the instruction input buffer, the data
input buffer, and the data output buffer image. The format of the special status word is
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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MC68HC001EI12 功能描述:微處理器 - MPU 16-BIT MPU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MC68HC001EI16 功能描述:微處理器 - MPU 16-BIT MPU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MC68HC001EI8 功能描述:微處理器 - MPU 16-BIT MPU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
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