AT91SAM9260B-QU Atmel, AT91SAM9260B-QU Datasheet - Page 771

• Manufacturer Part Number: AT91SAM9260B-QU
• Description: IC ARM9 MCU 208-PQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM9260B-QU

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 180MHz
• Connectivity: EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: POR, WDT
• Number Of I /o: 96
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: ROM
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 208-MQFP, 208-PQFP
• Package: 208PQFP
• Device Core: ARM926EJ-S
• Family Name: 91S
• Maximum Speed: 180 MHz
• Operating Supply Voltage: 1.8|3.3 V
• Data Bus Width: 32 Bit
• Number Of Programmable I/os: 96
• Interface Type: EBI/Ethernet/SPI/TWI/UART/USART/USB
• On-chip Adc: 4-chx10-bit
• Number Of Timers: 6
• Processor Series: AT91SAMx
• Core: ARM926EJ-S
• Data Ram Size: 8 KB
• Maximum Clock Frequency: 180 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM9260-EK
• Minimum Operating Temperature: - 40 C
• Cpu Family: AT91
• Device Core Size: 32b
• Frequency (max): 180MHz
• Total Internal Ram Size: 8KB
• # I/os (max): 96
• Number Of Timers - General Purpose: 6
• Operating Supply Voltage (typ): 1.8/3.3V
• Operating Supply Voltage (max): 1.95/3.6V
• Operating Supply Voltage (min): 1.65/3V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 208
• Package Type: PQFP
• For Use With: AT91SAM9260-EK - KIT EVAL FOR AT91SAM9260AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

43.3.5
43.3.5.1
43.3.5.2
43.3.5.3
43.3.5.4
43.3.5.5
6221I–ATARM–17-Jul-09
MCI
Busy Signal of R1b Responses is Not Taken in Account
SDIO Interrupt Does Not Work for Slot Different from A
Data Timeout Error Flag
Data Write Operation and Number of Bytes
Flag Reset is Not Correct in Half Duplex Mode
The busy status of the card during the response (R1b) is ignored for the commands CMD7,
CMD28, CMD29, CMD38, CMD42, CMD56. Additionally, for commands CMD42 and CMD56 a
conflict can occur on data line0 if the MCI sends data to the card while the card is still busy.The
behavior is correct for CMD12 command (STOP_TRANSFER).
None
If the data bus width is 1 bit and slots other than slot A chosen, the SDIO interrupt can not be
captured. The sample is made on the bad data line.
None
As the data Timeout error flag checking the Naac timing cannot rise, the MCI can be stalled wait-
ing indefinitely the Data start bit.
A STOP command must be sent with a software timeout.
The Data Write operation with a number of bytes less than 12 is impossible.
The PDC counters must always be equal to 12 bytes for data transfers lower than 12 bytes. The
BLKLEN or BCNT field are used to specify the real count number.
In half duplex mode, the reset of the flags ENDRX, RXBUFF, ENDTX and TXBUFE can be
incorrect.
These flags are reset correctly after a PDC channel enable.
Enable the interrupts related to ENDRX, ENDTX, RXBUFF and TXBUFE only after enabling the
PDC channel by writing PDC_TXTEN or PDC_RXTEN.
• to place the memories connected to the EBI as close as possible to the SAM9260 on the
• to route all the EBI signals with a series resistor, typical value 33 ohms
• to adjust the series resistor value with tools taking into account the IBIS model of the pads
PCB
and the characteristics of the wires of the PCB, in order to guarantee rise and fall times as
long as timings permit.
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
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