参数资料
型号: AT91SAM7S256C-MU
厂商: Atmel
文件页数: 6/165页
文件大小: 0K
描述: IC ARM7 MCU 32BIT 256K 64QFN
标准包装: 260
系列: SAM7S
核心处理器: ARM7
芯体尺寸: 16/32-位
速度: 55MHz
连通性: I²C,SPI,SSC,UART/USART,USB
外围设备: 欠压检测/复位,DMA,POR,PWM,WDT
输入/输出数: 32
程序存储器容量: 256KB(256K x 8)
程序存储器类型: 闪存
RAM 容量: 64K x 8
电压 - 电源 (Vcc/Vdd): 1.65 V ~ 1.95 V
数据转换器: A/D 8x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 64-VFQFN 裸露焊盘
包装: 托盘
103
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
18.4.2
MC Abort Status Register
Register Name:MC_ASR
Access Type:
Read-only
Reset Value:0x0
Offset:0x04
UNDADD: Undefined Address Abort Status
0: The last abort was not due to the access of an undefined address in the address space.
1: The last abort was due to the access of an undefined address in the address space.
MISADD: Misaligned Address Abort Status
0: The last aborted access was not due to an address misalignment.
1: The last aborted access was due to an address misalignment.
ABTSZ: Abort Size Status.
ABTTYP: Abort Type Status.
MST0: PDC Abort Source
0: The last aborted access was not due to the PDC.
1: The last aborted access was due to the PDC.
MST1: ARM7TDMI Abort Source
31
30
29
28
27
26
25
24
––
––––
SVMST1
SVMST0
23
22
21
20
19
18
17
16
––
––––
MST1
MST0
15
14
13
12
11
10
9
8
ABTTYP
ABTSZ
76
543210
––
––––
MISADD
UNDADD
ABTSZ
Abort Size
00
Byte
0
1
Half-word
10
Word
11
Reserved
ABTTYP
Abort Type
0
Data Read
0
1
Data Write
1
0
Code Fetch
11
Reserved
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