AT91SAM7SE512-CU Atmel, AT91SAM7SE512-CU Datasheet - Page 406
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
- Current page: 406 of 673
- Download datasheet (11Mb)
33.6.3.9
33.6.3.10
406
SAM7SE512/256/32 Preliminary
Framing Error
Transmit Break
Table 33-8.
The receiver is capable of detecting framing errors. A framing error happens when the stop bit of
a received character is detected at level 0. This can occur if the receiver and the transmitter are
fully desynchronized.
A framing error is reported on the FRAME bit of the Channel Status Register (US_CSR). The
FRAME bit is asserted in the middle of the stop bit as soon as the framing error is detected. It is
cleared by writing the Control Register (US_CR) with the RSTSTA bit at 1.
Figure 33-15. Framing Error Status
The user can request the transmitter to generate a break condition on the TXD line. A break con-
dition drives the TXD line low during at least one complete character. It appears the same as a
0x00 character sent with the parity and the stop bits at 0. However, the transmitter holds the
TXD line at least during one character until the user requests the break condition to be removed.
A break is transmitted by writing the Control Register (US_CR) with the STTBRK bit at 1. This
can be performed at any time, either while the transmitter is empty (no character in either the
Shift Register or in US_THR) or when a character is being transmitted. If a break is requested
while a character is being shifted out, the character is first completed before the TXD line is held
low.
Once STTBRK command is requested further STTBRK commands are ignored until the end of
the break is completed.
The break condition is removed by writing US_CR with the STPBRK bit at 1. If the STPBRK is
requested before the end of the minimum break duration (one character, including start, data,
parity and stop bits), the transmitter ensures that the break condition completes.
Baud Rate
Baud Rate
200000
56000
57600
FRAME
RXRDY
US_CR
Maximum Time-out Period (Continued)
Clock
Write
RXD
Start
Bit
D0
D1
D2
D3
D4
Bit Time
D5
18
17
5
D6
D7
Parity
Bit
Stop
Bit
RSTSTA = 1
Time-out
6222F–ATARM–14-Jan-11
1 170
1 138
328
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