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AT90SCR100 Datasheet(PDF) 296 Page - ATMEL Corporation

Part # AT90SCR100
Description  8-bit Microcontroller for Smart Card Readers
PDF  433 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT90SCR100 Datasheet(HTML) 296 Page - ATMEL Corporation

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TPR0327AY–SMS–30Jan09
AT90SCR100
• Bits 4..0 - HSSPIDMAB4..0 : HS SPI DMA Amount of Bytes Bits
These bits are the (4..0) bits of the 7-bit HSSPIDMA Amount of Bytes value.
When starting a HSSPIDMA operation, the hardware will check if the values of HSSPIDMADH,
HSSPIDMADL and HSSPIDMAB registers does not exceed the specific RAM area ($000100 to
$0010FF). If an error is detected, HSSPIDMACS.DMAERR bit is automatically set (one). A
Supervisor RAM Illegal Access Attempt Violation security interrupt (if not masked) is so trig-
gered. HSSPIDMADH, HSSPIDMADL and HSSPIDMAB registers keep their previous value.
After a HSSPIDMA operation completion, the value of this register is not reset.
The maximum value allowed for HSSPIDMAB is 16.
Note



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