AT91SAM7SE512-CU Atmel, AT91SAM7SE512-CU Datasheet - Page 567
AT91SAM7SE512-CU
Manufacturer Part Number
AT91SAM7SE512-CU
Description
IC ARM7 MCU FLASH 512K 144-LFBGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM7SE256-AU.pdf
(673 pages)
Specifications of AT91SAM7SE512-CU
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
144-LFBGA
Processor Series
AT91SAMx
Core
ARM7TDMI
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
EBI, SPI, TWI, USART
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
On-chip Adc
10 bit
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
Lead free / RoHS Compliant
Other names
AT91SAM7SE512-CJ
AT91SAM7SE512-CJ
AT91SAM7SE512-CJ
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM7SE512-CU
Manufacturer:
ALTERA
Quantity:
200
Part Number:
AT91SAM7SE512-CU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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Figure 38-11. Data OUT Transfer for Ping-pong Endpoint
Note:
38.5.2.8
6222F–ATARM–14-Jan-11
USB Bus
Packets
RX_DATA_BK0 Flag
(UDP_CSRx)
RX_DATA_BK1 Flag
(UDP_CSRx)
FIFO (DPR)
Bank 0
FIFO (DPR)
Bank 1
An interrupt is pending while the RX_DATA_BK0 or RX_DATA_BK1 flag is set.
Stall Handshake
Host Sends First Data Payload
Data OUT
PID
Set by USB Device,
Data Payload Written
in FIFO Endpoint Bank 0
Write by USB Device
Data OUT1
Warning: When RX_DATA_BK0 and RX_DATA_BK1 are both set, there is no way to determine
which one to clear first. Thus the software must keep an internal counter to be sure to clear alter-
natively RX_DATA_BK0 then RX_DATA_BK1. This situation may occur when the software
application is busy elsewhere and the two banks are filled by the USB host. Once the application
comes back to the USB driver, the two flags are set.
A stall handshake can be used in one of two distinct occasions. (For more information on the
stall handshake, refer to Chapter 8 of the Universal Serial Bus Specification, Rev 2.0.)
The following procedure generates a stall packet:
10. The microcontroller transfers out data received from the endpoint’s memory to the
11. The microcontroller notifies the USB device it has finished the transfer by clearing
12. A fourth Data OUT packet can be accepted by the USB device and copied in the FIFO
• A functional stall is used when the halt feature associated with the endpoint is set. (Refer to
• To abort the current request, a protocol stall is used, but uniquely with control transfer.
Chapter 9 of the Universal Serial Bus Specification, Rev 2.0, for more information on the halt
feature.)
microcontroller’s memory. Data received is available by reading the endpoint’s
UDP_FDRx register.
RX_DATA_BK1 in the endpoint’s UDP_CSRx register.
Bank 0.
Data OUT 1
ACK
PID
Read By Microcontroller
Set by USB Device,
Data Payload Written
in FIFO Endpoint Bank 1
Interrupt Pending
Microcontroller Reads Data 1 in Bank 0,
Host Sends Second Data Payload
Data OUT 1
Data OUT
PID
SAM7SE512/256/32 Preliminary
Write by USB Device
Data OUT 2
Data OUT 2
Cleared by Firmware
ACK
PID
Read By Microcontroller
Microcontroller Reads Data2 in Bank 1,
Host Sends Third Data Payload
Data OUT
PID
Interrupt Pending
Data OUT 2
Write In Progress
Cleared by Firmware
Data OUT 3
Data OUT 3
A
P
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