AT91SAM7SE512-AU Atmel, AT91SAM7SE512-AU Datasheet - Page 232
AT91SAM7SE512-AU
Manufacturer Part Number
AT91SAM7SE512-AU
Description
IC ARM7 MCU FLASH 512K 128-LQFP
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM7SE512-AU
Core Processor
ARM7
Core Size
16/32-Bit
Speed
55MHz
Connectivity
EBI/EMI, I²C, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
88
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
32K 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
128-LQFP
Cpu Family
91S
Device Core
ARM7TDMI
Device Core Size
32b
Frequency (max)
55MHz
Interface Type
EBI/SPI/TWI/USART
Total Internal Ram Size
32KB
# I/os (max)
88
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
On-chip Adc
8-chx10-bit
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
128
Package Type
LQFP
No. Of I/o's
88
Ram Memory Size
32KB
Cpu Speed
48MHz
No. Of Timers
3
No. Of Pwm Channels
4
Digital Ic Case Style
LQFP
Rohs Compliant
Yes
Processor Series
AT91SAMx
Core
ARM7TDMI
Data Bus Width
32 bit
Data Ram Size
32 KB
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
32
Number Of Timers
3
Operating Supply Voltage
1.8 V to 3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, KSK-AT91SAM7S-PL, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM7SE-EK
Minimum Operating Temperature
- 40 C
For Use With
AT91SAM7SE-EK - EVAL BOARD FOR AT91SAM7SEAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM7SE512-AU
Manufacturer:
AMTEL
Quantity:
382
Part Number:
AT91SAM7SE512-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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25.4.2
25.4.3
232
SAM7SE512/256/32 Preliminary
Xmodem Protocol
USB Device Port
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-charac-
ter 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 25-3
Figure 25-3. Xmodem Transfer Example
A 48 MHz USB clock is necessary to use the USB Device port. It has been programmed earlier
in the device initialization procedure with PLLB configuration.
The device uses the USB communication device class (CDC) drivers to take advantage of the
installed PC RS-232 software to talk over the USB. The CDC class is implemented in all
releases of Windows
www.usb.org, describes a way to implement devices such as ISDN modems and virtual COM
ports.
The Vendor ID is Atmel’s vendor ID 0x03EB. The product ID is 0x6124. These references are
used by the host operating system to mount the correct driver. On Windows systems, the INF
files contain the correspondence between vendor ID and product ID.
– <SOH> = 01 hex
– <blk #> = binary number, starts at 01, increments by 1, and wraps 0FFH to 00H (not
– <255-blk #> = 1’s complement of the blk#.
– <checksum> = 2 bytes CRC16
to 01)
shows a transmission using this protocol.
®
, from Windows 98SE to Windows XP
Host
SOH 02 FD Data[128] CRC CRC
SOH 01 FE Data[128] CRC CRC
SOH 03 FC Data[100] CRC CRC
ACK
EOT
ACK
ACK
ACK
C
®
. The CDC document, available at
Device
6222F–ATARM–10-Jan-11
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