AT91SAM7XC512-CU Atmel, AT91SAM7XC512-CU Datasheet - Page 531

• Manufacturer Part Number: AT91SAM7XC512-CU
• Description: MCU ARM 512K HS FLASH 100-TFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7XC512-CU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: CAN, Ethernet, I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 62
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TFBGA
• Processor Series: AT91SAMx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 128 KB
• Interface Type: MII, SPI, TWI
• Maximum Clock Frequency: 55 MHz
• Number Of Programmable I/os: 62
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, KSK-AT91SAM7X-PL, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM7XC-EK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7XC-EK - KIT EVAL FOR AT91SAM7XC256/128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

37.3.3.2
6209F–ATARM–17-Feb-09
PDC Mode
If the user does not want to read the output data registers between each encryption/decryption,
the DATRDY flag will not be cleared. If the DATRDY flag is not cleared, the user will not be
informed of the end of the encryptions/decryptions that follow.
If LOD = 1:
The DATRDY flag is cleared when at least one Input Data Register is written, before the start of
a new transfer. See
consecutive encryptions/decryptions.
Figure 37-2. Manual and Auto Modes with LOD = 1
If LOD = 0:
The end of the encryption/decryption is notified by the ENDRX (or RXBUFF) flag rise See
37-3.
Figure 37-3. PDC mode with LOD = 0:
If LOD = 1:
The user must first wait for the ENDTX (or TXBUFE) flag rise, then for DATRDY to ensure that
the encryption/decryption is completed. See
In this case, no receive buffers are required.
The output data is only available on the Output Data Registers (TDES_ODATAxR).
ENDRX (or RXBUFF)
DATRDY
Write TDES_IDATAxR register(s) (Auto mode)
Write START bit in TDES_CR (Manual mode)
Enable PDC Channels (Receive and Transmit Channels)
Figure
AT91SAM7XC512/256/128 Preliminary
37-2. No further Output Data Register reads are necessary between
or
Encryption or Decryption Process
Multiple Encryption or Decryption Process
Figure
37-4.
Write TDES_IDATAxR register(s)
Figure
531