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型號(hào)：	E5550F-DOW
廠商：	TEMIC SEMICONDUCTORS
元件分類：	通信及網(wǎng)絡(luò)
英文描述：	SPECIALTY TELECOM CIRCUIT, UUC7
封裝：	DIE-7
文件頁(yè)數(shù)：	73/1069頁(yè)
文件大小：	14303K
代理商：	E5550F-DOW

SAM4CP [DATASHEET]

43051E–ATPL–08/14

12.4.3.4 Vector Table

The vector table contains the reset value of the stack pointer, and the start addresses, also called exception vectors, for

all exception handlers.

shows the order of the exception vectors in the vector table. The least-significant bit

of each vector must be 1, indicating that the exception handler is Thumb code.

Figure 12-6.

Vector Table

On system reset, the vector table is fixed at address 0x00000000. Privileged software can write to the SCB_VTOR regis-

ter to relocate the vector table start address to a different memory location, in the range 0x00000080 to 0x3FFFFF80,

“Vector Table Offset Register”

12.4.3.5 Exception Priorities

shows, all exceptions have an associated priority, with:

A lower priority value indicating a higher priority.

Configurable priorities for all exceptions except Reset, Hard fault and NMI.

If the software does not configure any priorities, then all exceptions with a configurable priority have a priority of 0. For

information about configuring exception priorities see

“System Handler Priority Registers”

“Interrupt Priority

Configurable priority values are in the range 0-15. This means that the Reset, Hard fault, and NMI exceptions,

with fixed negative priority values, always have higher priority than any other exception.

For example, assigning a higher priority value to IRQ[0] and a lower priority value to IRQ[1] means that IRQ[1] has higher

priority than IRQ[0]. If both IRQ[1] and IRQ[0] are asserted, IRQ[1] is processed before IRQ[0].

If multiple pending exceptions have the same priority, the pending exception with the lowest exception number takes pre-

cedence. For example, if both IRQ[0] and IRQ[1] are pending and have the same priority, then IRQ[0] is processed

before IRQ[1].

Initial SP value

Memory management fault

Reserved for Debug

Exception number

相關(guān)PDF資料	PDF描述
E5551A-DIT	SPECIALTY TELECOM CIRCUIT, UUC7
E5551A-DOW	SPECIALTY TELECOM CIRCUIT, UUC7
E5551A-FP008	SPECIALTY TELECOM CIRCUIT, PDSO8
E5551A-FP008	SPECIALTY TELECOM CIRCUIT, PDSO8
E5551A-DOW	SPECIALTY TELECOM CIRCUIT, UUC7

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
E5550F-S8	制造商:未知廠家制造商全稱:未知廠家功能描述:Transponder
E5551A-DIT	制造商:未知廠家制造商全稱:未知廠家功能描述:Transponder
E5551A-DOW	制造商:未知廠家制造商全稱:未知廠家功能描述:Transponder
E5551A-FP008	制造商:未知廠家制造商全稱:未知廠家功能描述:TRANSPONDER\|CMOS\|SOP\|8PIN\|PLASTIC
E5552	制造商:未知廠家制造商全稱:未知廠家功能描述:Transponder

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