AT91SAM7X256B-AU Atmel, AT91SAM7X256B-AU Datasheet - Page 561

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

Specifications of AT91SAM7X256B-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: 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-LQFP
• Package: 100LQFP
• Device Core: ARM7TDMI
• Family Name: 91S
• Maximum Speed: 55 MHz
• Operating Supply Voltage: 1.8|3.3 V
• Data Bus Width: 32 Bit
• Number Of Programmable I/os: 62
• Interface Type: CAN/Ethernet/SPI/I2S/TWI/USART/USB
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 3
• Controller Family/series: AT91SAM7xxxxx
• No. Of I/o's: 62
• Ram Memory Size: 64KB
• Cpu Speed: 55MHz
• No. Of Timers: 1
• Rohs Compliant: Yes
• Cpu Family: 91S
• Device Core Size: 32b
• Frequency (max): 55MHz
• Total Internal Ram Size: 64KB
• # I/os (max): 62
• Number Of Timers - General Purpose: 3
• 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: 100
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

36.8.19
Name:
Access Type:
• MDLC: Mailbox Data Length Code
• MRTR: Mailbox Remote Transmission Request
Consumer situations can be handled automatically by setting the mailbox object type in Consumer. This requires only one
mailbox.
It can also be handled using two mailboxes, one in reception, the other in transmission. The MRTR and the MTCR bits
must be set in the same time.
6120H–ATARM–17-Feb-09
MTCR
31
23
15
Receive with overwrite
Receive with overwrite
–
–
7
–
Mailbox Object Type
Mailbox Object Type
CAN Message Control Register
Consumer
Consumer
Producer
Producer
Transmit
Transmit
Receive
Receive
MACR
30
22
14
CAN_MCRx
Write-only
–
–
6
–
Description
No action.
No action.
Length of the mailbox message.
No action.
Length of the mailbox message to be sent after the remote frame reception.
Description
No action
No action
Set the RTR bit in the sent frame
No action, the RTR bit in the sent frame is set automatically
No action
29
21
13
–
–
–
5
–
MRTR
AT91SAM7X512/256/128 Preliminary
28
20
12
–
–
4
–
27
19
11
–
–
3
–
26
18
10
–
–
2
–
MDLC
25
17
–
9
–
1
–
24
16
–
8
–
0
–
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