AT91SAM9M10-CU Atmel, AT91SAM9M10-CU Datasheet - Page 555
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AT91SAM9M10-CU
Manufacturer Part Number
AT91SAM9M10-CU
Description
IC MCU 16/32BIT ARM9 324TFBGA
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM9M10-CU
Core Processor
ARM9
Core Size
16/32-Bit
Speed
400MHz
Connectivity
EBI/EMI, Ethernet, I²C, SPI, SSC, UART/USART, USB
Peripherals
AC'97, DMA, LCD, POR, PWM, WDT
Number Of I /o
160
Program Memory Size
64KB (64K x 8)
Program Memory Type
ROM
Ram Size
128K x 8
Voltage - Supply (vcc/vdd)
0.9 V ~ 1.1 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
324-TFBGA
Processor Series
AT91SAMx
Core
ARM926EJ-S
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
2-Wire, SPI, USART
Maximum Clock Frequency
133 MHz
Number Of Programmable I/os
5
Number Of Timers
2 x 16 bit
Operating Supply Voltage
1.65 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM9M10-G45-EK
Controller Family/series
AT91
No. Of I/o's
160
Ram Memory Size
64KB
Cpu Speed
400MHz
No. Of Timers
2
Rohs Compliant
Yes
Cpu Family
AT91
Device Core
ARM926EJ-S
Device Core Size
32b
Frequency (max)
400MHz
Total Internal Ram Size
64KB
# I/os (max)
160
Number Of Timers - General Purpose
7
Operating Supply Voltage (typ)
1.8/2.5/3.3V
Operating Supply Voltage (max)
1.1/1.95/3.6V
Operating Supply Voltage (min)
0.9/1.65/1.8/3V
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
324
Package Type
TFBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM9M10-CU
Manufacturer:
Atmel
Quantity:
996
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32.7.4.6
32.7.4.7
32.7.5
Figure 32-33. Connection to IrDA Transceivers
6355B–ATARM–21-Jun-10
IrDA Mode
Disable Successive Receive NACK
Protocol T = 1
When the USART repetition number reaches MAX_ITERATION, the ITERATION bit is set in the
Channel Status Register (US_CSR). If the repetition of the character is acknowledged by the
receiver, the repetitions are stopped and the iteration counter is cleared.
The ITERATION bit in US_CSR can be cleared by writing the Control Register with the RSIT bit
at 1.
The receiver can limit the number of successive NACKs sent back to the remote transmitter.
This is programmed by setting the bit DSNACK in the Mode Register (US_MR). The maximum
number of NACK transmitted is programmed in the MAX_ITERATION field. As soon as
MAX_ITERATION is reached, the character is considered as correct, an acknowledge is sent on
the line and the ITERATION bit in the Channel Status Register is set.
When operating in ISO7816 protocol T = 1, the transmission is similar to an asynchronous for-
mat with only one stop bit. The parity is generated when transmitting and checked when
receiving. Parity error detection sets the PARE bit in the Channel Status Register (US_CSR).
The USART features an IrDA mode supplying half-duplex point-to-point wireless communica-
tion. It embeds the modulator and demodulator which allows a glueless connection to the
infrared transceivers, as shown in
with the IrDA specification version 1.1 and support data transfer speeds ranging from 2.4 Kb/s to
115.2 Kb/s.
The USART IrDA mode is enabled by setting the USART_MODE field in the Mode Register
(US_MR) to the value 0x8. The IrDA Filter Register (US_IF) allows configuring the demodulator
filter. The USART transmitter and receiver operate in a normal asynchronous mode and all
parameters are accessible. Note that the modulator and the demodulator are activated.
The receiver and the transmitter must be enabled or disabled according to the direction of the
transmission to be managed.
To receive IrDA signals, the following needs to be done:
• Disable TX and Enable RX
Transmitter
Receiver
USART
Demodulator
Modulator
Figure
RXD
TXD
32-33. The modulator and demodulator are compliant
RX
TX
Transceivers
IrDA
AT91SAM9M10
555
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