AT91SAM9261-CJ-999 Atmel, AT91SAM9261-CJ-999 Datasheet - Page 549
AT91SAM9261-CJ-999
Manufacturer Part Number
AT91SAM9261-CJ-999
Description
IC MCU ARM9 ULTRA LP 217LFBGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM9261-CJ-999.pdf
(749 pages)
Specifications of AT91SAM9261-CJ-999
Core Processor
ARM9
Core Size
16/32-Bit
Speed
190MHz
Connectivity
EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
DMA, LCD, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
32KB (32K x 8)
Program Memory Type
ROM
Ram Size
192K x 8
Voltage - Supply (vcc/vdd)
1.08 V ~ 1.32 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
217-LFBGA
For Use With
AT91SAM9261-EK - KIT EVAL FOR AT91SAM926EJ-SAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
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6062M–ATARM–23-Mar-09
the user can configure the interrupt enable register (MCI_IER) to trigger an interrupt at the end
of read.
Figure 35-8. Read Functional Flow Diagram
Note:
Number of words to read = BlockLength/4
Reset the PDCMODE bit
MCI_MR &= ~PDCMODE
Set the block length (in bytes)
MCI_MR |= (BlockLenght <<16)
Number of words to read = 0 ?
It is assumed that this command has been correctly sent (see
Read status register MCI_SR
Send READ_SINGLE_BLOCK
Number of words to read -1
Number of words to read =
Read data = MCI_RDR
RXRDY = 0?
No
command
Poll the bit
No
(1)
No
Send SET_BLOCKLEN command
Send SELECT/DESELECT_CARD
command
Yes
Yes
RETURN
Read with PDC
(1)
AT91SAM9261 Preliminary
to select the card
(1)
Set the PDCMODE bit
MCI_MR |= PDCMODE
Set the block length (in bytes)
MCI_MR |= (BlockLength << 16)
Configure the PDC channel
MCI_RPR = Data Buffer Address
MCI_RCR = BlockLength/4
MCI_PTCR = RXTEN
Send READ_SINGLE_BLOCK
Yes
Read status register MCI_SR
Figure
command (1)
ENDRX = 0?
Poll the bit
RETURN
35-7).
No
Yes
549
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