AT91SAM9XE512-QU Atmel, AT91SAM9XE512-QU Datasheet - Page 455
AT91SAM9XE512-QU
Manufacturer Part Number
AT91SAM9XE512-QU
Description
MCU ARM9 512K FLASH 208-PQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM9XE128-QU.pdf
(860 pages)
Specifications of AT91SAM9XE512-QU
Core Processor
ARM9
Core Size
16/32-Bit
Speed
180MHz
Connectivity
EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
56K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
208-MQFP, 208-PQFP
Controller Family/series
AT91SAM9xxxxx
No. Of I/o's
96
Ram Memory Size
32KB
Cpu Speed
180MHz
No. Of Timers
2
Rohs Compliant
Yes
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
2-Wire, EBI, I2S, SPI, USART
Maximum Clock Frequency
180 MHz
Number Of Programmable I/os
96
Number Of Timers
6
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 4 Channel
Package
208PQFP
Device Core
ARM926EJ-S
Family Name
91S
Maximum Speed
180 MHz
Operating Supply Voltage
1.8|2.5|3.3 V
For Use With
AT91SAM9XE-EK - KIT EVAL FOR AT91SAM9XEAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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Quantity
Price
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Figure 33-8. Master Write with One Byte Internal Address and Multiple Data Bytes
33.7.5
455
TXCOMP
TXRDY
TWCK
TWD
Write THR (Data n)
AT91SAM9XE128/256/512 Preliminary
S
Master Receiver Mode
DADR
W
TXRDY is used as Transmit Ready for the PDC transmit channel.
The read sequence begins by setting the START bit. After the start condition has been sent, the
master sends a 7-bit slave address to notify the slave device. The bit following the slave address
indicates the transfer direction, 1 in this case (MREAD = 1 in TWI_MMR). During the acknowl-
edge clock pulse (9th pulse), the master releases the data line (HIGH), enabling the slave to pull
it down in order to generate the acknowledge. The master polls the data line during this clock
pulse and sets the NACK bit in the status register if the slave does not acknowledge the byte.
If an acknowledge is received, the master is then ready to receive data from the slave. After data
has been received, the master sends an acknowledge condition to notify the slave that the data
has been received except for the last data, after the stop condition. See
RXRDY bit is set in the status register, a character has been received in the receive-holding reg-
ister (TWI_RHR). The RXRDY bit is reset when reading the TWI_RHR.
When a single data byte read is performed, with or without internal address (IADR), the START
and STOP bits must be set at the same time. See
performed, with or without internal address (IADR), the STOP bit must be set after the next-to-
last data received. See
Figure 33-9. Master Read with One Data Byte
A
IADR
TXCOMP
RXRDY
TWD
A
Figure
DATA n
S
Write START &
33-10. For Internal Address usage see
STOP Bit
DADR
A
Write THR (Data n+1)
R
Figure
A
33-9. When a multiple data byte read is
DATA n+1
DATA
STOP command performed
(by writing in the TWI_CR)
Write THR (Data n+2)
Last data sent
Read RHR
A
Section
N
Figure
DATA n+2
P
6254C–ATARM–22-Jan-10
33.7.6.
33-9. When the
A
P
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