AT91SAM7SE512B-CUR Atmel, AT91SAM7SE512B-CUR Datasheet - Page 373
AT91SAM7SE512B-CUR
Manufacturer Part Number
AT91SAM7SE512B-CUR
Description
IC ARM7 MUC FLASH 512K 144-LFBGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM7SE256-AU.pdf
(673 pages)
Specifications of AT91SAM7SE512B-CUR
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
*
Processor Series
SAM7SE512
Core
ARM7TDMI
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
SPI, USB
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
88
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Operating Temperature Range
- 40 C to + 85 C
Processor To Be Evaluated
AT91SAM7SE512B
Supply Current (max)
60 uA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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Company
Part Number
Manufacturer
Quantity
Price
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32.9.5.5
Figure 32-29. Repeated Start + Reversal from Read to Write Mode
Figure 32-30. Repeated Start + Reversal from Write to Read Mode
Notes:
6222F–ATARM–14-Jan-11
TWI_RHR
TWI_RHR
TWI_THR
TWI_THR
TXCOMP
TXCOMP
EOSACC
EOSACC
SVREAD
SVREAD
Reversal of Read to Write
Reversal of Write to Read
RXRDY
RXRDY
SVACC
SVACC
TXRDY
TXRDY
TWD
TWD
1. In this case, if TWI_THR has not been written at the end of the read command, the clock is automatically stretched before
2. TXCOMP is only set at the end of the transmission because after the repeated start, SADR is detected again.
the ACK.
Reversal after a Repeated Start
S
S
As soon as a START is detected
As soon as a START is detected
SADR
SADR
The master initiates the communication by a read command and finishes it by a write command.
Figure 32-29 on page 373
1. TXCOMP is only set at the end of the transmission because after the repeated start, SADR is detected again.
The master initiates the communication by a write command and finishes it by a read com-
mand.Figure 32-30 on page 373
mode.
W
R
Read TWI_RHR
A
A
DATA0
DATA0
DATA0
A
A
DATA0
DATA1
DATA1
DATA1
describes the repeated start + reversal from Read to Write mode.
NA
A
describes the repeated start + reversal from Write to Read
DATA1
SAM7SE512/256/32 Preliminary
Sr
Sr
SADR
SADR
Cleared after read
Cleared after read
R
W
DATA2
A
A
DATA2
DATA2
DATA2
A
A
DATA3
DATA3
DATA3
DATA3
NA
A
P
P
373
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