AT91SAM7X512-AU Atmel, AT91SAM7X512-AU Datasheet - Page 62

• Manufacturer Part Number: AT91SAM7X512-AU
• Description: MCU ARM 512K HS FLASH 100-LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7X512-AU

• 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-LQFP
• Processor Series: AT91SAMx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 128 KB
• Interface Type: CAN, SPI, SSC, TWI, USART, USB
• Maximum Clock Frequency: 55 MHz
• Number Of Programmable I/os: 13
• Number Of Timers: 3
• Operating Supply Voltage: 3 V to 3.6 V
• 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, AT91SAM7X-EK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• No. Of I/o's: 62
• Ram Memory Size: 128KB
• Cpu Speed: 55MHz
• No. Of Timers: 3
• No. Of Pwm Channels: 4
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7X-EK - KIT EVAL FOR AT91SAM7X256/128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

13.2.4.3
Figure 13-6. Brownout Reset State
62
AT91SAM7X512/256/128 Preliminary
periph_nreset
or bod_reset
Brownout Reset
proc_nreset
brown_out
(nrst_out)
RSTTYP
NRST
SLCK
MCK
When the brown_out/bod_reset signal is asserted, the Reset State Manager immediately enters
the Brownout Reset. In this state, the processor, the peripheral and the external reset lines are
asserted.
The Brownout Reset is left 3 Slow Clock cycles after the rising edge of brown_out/bod_reset
after a two-cycle resynchronization. An external reset is also triggered.
When the processor reset is released, the field RSTTYP in RSTC_SR is loaded with the value
0x5, thus indicating that the last reset is a Brownout Reset.
Freq.
Any
Any
Resynch.
2 cycles
XXX
Processor Startup
= 3 cycles
EXTERNAL RESET LENGTH
8 cycles (ERSTL=2)
0x5 = Brownout Reset
6120H–ATARM–17-Feb-09