AT91SAM7XC512-CU Atmel, AT91SAM7XC512-CU Datasheet - Page 132

• 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

20.2.2
132
AT91SAM7XC512/256/128 Preliminary
Read Operations
Figure 20-1. Embedded Flash Memory Mapping
An optimized controller manages embedded Flash reads. A system of 2 x 32-bit buffers is added
in order to start access at following address during the second read, thus increasing perfor-
mance when the processor is running in Thumb mode (16-bit instruction set). See
Figure 20-3
This optimization concerns only Code Fetch and not Data.
The read operations can be performed with or without wait state. Up to 3 wait states can be pro-
grammed in the field FWS (Flash Wait State) in the Flash Mode Register MC_FMR (see
Flash Mode Register” on page
the embedded Flash.
The Flash memory is accessible through 8-, 16- and 32-bit reads.
As the Flash block size is smaller than the address space reserved for the internal memory area,
the embedded Flash wraps around the address space and appears to be repeated within it.
and
Start Address
Figure
20-4.
Lock Region (n-1)
Flash Memory
Lock Region 0
Lock Region 1
142). Defining FWS to be 0 enables the single-cycle access of
32-bit wide
Lock Bit n-1
Lock Bit 0
Lock Bit 1
Page ( (n-1)*m )
Page (n*m-1)
Page (m-1)
Page 0
6209F–ATARM–17-Feb-09
Figure
20-2,
“MC