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您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄358702 > E5550F-DOW (TEMIC SEMICONDUCTORS) SPECIALTY TELECOM CIRCUIT, UUC7 PDF資料下載

型號(hào)：	E5550F-DOW
廠商：	TEMIC SEMICONDUCTORS
元件分類(lèi)：	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)：	975/1069頁(yè)
文件大?。?/td>	14303K
代理商：	E5550F-DOW

SAM4CP [DATASHEET]

43051E–ATPL–08/14

Functional Description

The Integrity Check Monitor (ICM) is a DMA controller that performs SHA-based memory hashing over memory regions.

, it integrates a DMA interface, a Monitoring Finite State Machine (FSM), an integrity scheduler,

a set of context registers, a SHA engine, an APB interface and configuration registers.

When the ICM module is enabled, it sequentially retrieves a circular list of region descriptors from the memory (Main List

described in

). Up to four regions may be monitored. Each region descriptor is composed of four words

indicating the layout of the memory region (see

). It also contains the hashing engine configuration on a per

region basis. As soon as the descriptor is loaded from the memory and context registers are updated with the data

structure, the hashing operation starts. A programmable number of Blocks (see TRSIZE field of the ICM_RCTRL

structure member) is transferred from the memory to the SHA engine. When the desired number of blocks have been

transferred, the digest is whether moved to memory (write-back function) or compared with a digest reference located in

the system memory (compare function). If a digest mismatch occurs, an interrupt is triggered if unmasked. The ICM

module passes through the Region descriptor list until the end of the list marked by an End of List bit set to one. To

continuously monitor the list of regions, the WRAP bit must be set to one in the last data structure.

Figure 42-3.

ICM Region Descriptor and Hash Areas

Peripherals IDs

ICM Descriptor

Area - Contiguous

Read-only Memory

infinite loop

when wrap bit is set

End of Region 0

End of Region 1 List

End of Region N

Region 0 Hash

Region 1 Hash

Region N Hash

ICM Hash Area -

Read-write once

Secondary List

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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