AT91SAM7S64C-AU Atmel, AT91SAM7S64C-AU Datasheet - Page 147
![IC ARM7 MCU 32BIT 64K 64LQFP](/photos/12/13/121332/313-64-tqfp_sml.jpg)
AT91SAM7S64C-AU
Manufacturer Part Number
AT91SAM7S64C-AU
Description
IC ARM7 MCU 32BIT 64K 64LQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM7S16-MU.pdf
(779 pages)
Specifications of AT91SAM7S64C-AU
Package / Case
64-LQFP
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Operating Temperature
-40°C ~ 85°C
Speed
55MHz
Number Of I /o
32
Core Processor
ARM7
Program Memory Type
FLASH
Ram Size
16K x 8
Program Memory Size
64KB (64K x 8)
Data Converters
A/D 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Connectivity
I²C, SPI, SSC, UART/USART, USB
Core Size
16/32-Bit
Core
ARM7TDMI
Package
64LQFP
Device Core
ARM7TDMI
Family Name
AT91
Maximum Speed
55 MHz
Operating Supply Voltage
1.8|3.3 V
Data Bus Width
32 Bit
Number Of Programmable I/os
32
Interface Type
SPI/TWI/USART/USB
On-chip Adc
8-chx10-bit
Number Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
AT91SAM7S64B-AU::AT91SAM7S64B-AU
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM7S64C-AU
Manufacturer:
ATMEL
Quantity:
4 300
Part Number:
AT91SAM7S64C-AU
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- Current page: 147 of 779
- Download datasheet (11Mb)
21.5.1
21.5.2
6175K–ATARM–30-Aug-10
DBGU Serial Port
Xmodem Protocol
Communication is performed through the DBGU serial port initialized to 115200 Baud, 8, n, 1.
The Send and Receive File commands use the Xmodem protocol to communicate. Any termi-
nal performing this protocol can be used to send the application file to the target. The size of
the binary file to send depends on the SRAM size embedded in the product. In all cases, the
size of the binary file must be lower than the SRAM size because the Xmodem protocol
requires some SRAM memory to work.
The Xmodem protocol supported is the 128-byte length block. This protocol uses a two-char-
acter CRC-16 to guarantee detection of a maximum bit error.
Xmodem protocol with CRC is accurate provided both sender and receiver report successful
transmission. Each block of the transfer looks like:
<SOH><blk #><255-blk #><--128 data bytes--><checksum> in which:
Figure 21-4
Figure 21-4. Xmodem Transfer Example
– <SOH> = 01 hex
– <blk #> = binary number, starts at 01, increments by 1, and wraps 0FFH to 00H
– <255-blk #> = 1’s complement of the blk#.
– <checksum> = 2 bytes CRC16
(not to 01)
shows a transmission using this protocol.
Host
AT91SAM7S Series Preliminary
SOH 02 FD Data[128] CRC CRC
SOH 03 FC Data[100] CRC CRC
SOH 01 FE Data[128] CRC CRC
ACK
EOT
ACK
ACK
ACK
C
Device
147
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