- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄25639 > MC80C52CXXX-12SB (TEMIC SEMICONDUCTORS) 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CDIP40 PDF資料下載
參數(shù)資料
| 型號： | MC80C52CXXX-12SB |
| 廠商： | TEMIC SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CDIP40 |
| 文件頁數(shù)： | 58/80頁 |
| 文件大?。?/td> | 5152K |
| 代理商： | MC80C52CXXX-12SB |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁當前第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁
258
XMEGA A [MANUAL]
8077I–AVR–11/2012
In decryption mode, the key is the last subkey of the expanded key defined in the AES standard.
In decryption mode, the key expansion procedure must be executed by software before operation with the AES crypto
module so that the last subkey is ready to be loaded through the KEY register. Alternatively, this procedure can be run in
hardware by using the AES crypto module to process a dummy data block in encryption mode using the same key. After
the end of the encryption, reading from the key memory allows the last subkey to be obtained; i.e., get the result of the
key expansion procedure. Table 23-1 shows the results of reading the key, depending on the mode (encryption or
decryption) and status of the AES crypto module.
Table 23-1. The result of reading the key memory at different stages.
23.4.2 DMA Support
The AES module can trigger a DMA transfer when the encryption/decryption procedure is complete. For more details on
DMA transfer triggers, refer to “Transfer Triggers” on page 52.
Encryption
Decryption
Before data processing
After data processing
Before data processing
After Data Processing
Same key as loaded
The last subkey generated from the
loaded key
Same key as loaded
The initial key generated from the
last loaded subkey
相關PDF資料 |
PDF描述 |
|---|---|
| MQ80C32-25SCD | 8-BIT, 25 MHz, MICROCONTROLLER, CQFP44 |
| MQ80C32E-20SHXXX:D | 8-BIT, 20 MHz, MICROCONTROLLER, CQFP44 |
| MD80C52CXXX-16SCD | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CDIP40 |
| MF180C51-16R | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP44 |
| MQ80C32E-20SHXXX:D | 8-BIT, 20 MHz, MICROCONTROLLER, CQFP44 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC80D21000G | 制造商:COR 功能描述:RN |
| MC80F0104 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| MC80F0104B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| MC80F0104D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| MC80F0204 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
發(fā)布緊急采購，3分鐘左右您將得到回復。