AT91SAM7X256B-CU Atmel, AT91SAM7X256B-CU Datasheet - Page 682

• Manufacturer Part Number: AT91SAM7X256B-CU
• Description: IC MCU 256KB FLASH 100TFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7X256B-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: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K 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: 91S
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 64 KB
• Interface Type: CAN, Ethernet, SPI, I2S, TWI, USART, USB
• Maximum Clock Frequency: 55 MHz
• Number Of Programmable I/os: 62
• Number Of Timers: 3
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Package: 100TFBGA
• Device Core: ARM7TDMI
• Family Name: 91S
• Maximum Speed: 55 MHz
• On-chip Adc: 8-chx10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

iv
AT91SAM7X512/256/128 Preliminary
20 Fast Flash Programming Interface (FFPI) .......................................... 119
21 AT91SAM Boot Program ..................................................................... 135
22 Peripheral DMA Controller (PDC) ....................................................... 141
23 Advanced Interrupt Controller (AIC) .................................................. 151
24 Clock Generator ................................................................................... 177
25 Power Management Controller (PMC) ................................................ 181
19.3
20.1
20.2
20.3
21.1
21.2
21.3
21.4
21.5
22.1
22.2
22.3
22.4
23.1
23.2
23.3
23.4
23.5
23.6
23.7
23.8
24.1
24.2
24.3
24.4
25.1
25.2
25.3
Embedded Flash Controller (EFC ) User Interface ........................................113
Overview ........................................................................................................119
Parallel Fast Flash Programming ..................................................................119
Serial Fast Flash Programming .....................................................................128
Overview ........................................................................................................135
Flow Diagram ................................................................................................135
Device Initialization ........................................................................................135
SAM-BA Boot ................................................................................................136
Hardware and Software Constraints ..............................................................140
Overview ........................................................................................................141
Block Diagram ...............................................................................................141
Functional Description ...................................................................................142
Peripheral DMA Controller (PDC) User Interface ..........................................144
Overview ........................................................................................................151
Block Diagram ...............................................................................................151
Application Block Diagram .............................................................................152
AIC Detailed Block Diagram ..........................................................................152
I/O Line Description .......................................................................................152
Product Dependencies ..................................................................................153
Functional Description ...................................................................................154
Advanced Interrupt Controller (AIC) User Interface .......................................166
Overview ........................................................................................................177
Slow Clock RC Oscillator ...............................................................................177
Main Oscillator ...............................................................................................177
Divider and PLL Block ...................................................................................179
Description .....................................................................................................181
Master Clock Controller .................................................................................181
Processor Clock Controller ............................................................................182
6120H–ATARM–17-Feb-09