AT91RM9200-QI-002 Atmel, AT91RM9200-QI-002 Datasheet - Page 323
AT91RM9200-QI-002
Manufacturer Part Number
AT91RM9200-QI-002
Description
IC ARM9 MCU 208 PQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheets
1.AT91RM9200-EK.pdf
(41 pages)
2.AT91RM9200-DK.pdf
(2 pages)
3.AT91RM9200-QU-002.pdf
(701 pages)
Specifications of AT91RM9200-QI-002
Core Processor
ARM9
Core Size
16/32-Bit
Speed
180MHz
Connectivity
EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
POR
Number Of I /o
122
Program Memory Size
128KB (128K x 8)
Program Memory Type
ROM
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
208-MQFP, 208-PQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91RM9200-QI-002 SL383
Manufacturer:
Atmel
Quantity:
10 000
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26.3
26.3.1
26.3.2
26.3.3
26.4
26.4.1
1768I–ATARM–09-Jul-09
Product Dependencies
UART Operations
I/O Lines
Power Management
Interrupt Source
Baud Rate Generator
Depending on product integration, the Debug Unit pins may be multiplexed with PIO lines. In this
case, the programmer must first configure the corresponding PIO Controller to enable I/O lines
operations of the Debug Unit.
Depending on product integration, the Debug Unit clock may be controllable through the Power
Management Controller. In this case, the programmer must first configure the PMC to enable the
Debug Unit clock. Usually, the peripheral identifier used for this purpose is 1.
Depending on product integration, the Debug Unit interrupt line is connected to one of the inter-
rupt sources of the Advanced Interrupt Controller. Interrupt handling requires programming of
the AIC before configuring the Debug Unit. Usually, the Debug Unit interrupt line connects to the
interrupt source 1 of the AIC, which may be shared with the real-time clock, the system timer
interrupt lines and other system peripheral interrupts, as shown in
requires the programmer to determine the source of the interrupt when the source 1 is triggered.
The Debug Unit operates as a UART, (asynchronous mode only) and supports only 8-bit charac-
ter handling (with parity). It has no clock pin.
The Debug Unit's UART is made up of a receiver and a transmitter that operate independently,
and a common baud rate generator. Receiver timeout and transmitter time guard are not imple-
mented. However, all the implemented features are compatible with those of a standard USART.
The baud rate generator provides the bit period clock named baud rate clock to both the receiver
and the transmitter.
The baud rate clock is the master clock divided by 16 times the value (CD) written in
DBGU_BRGR (Baud Rate Generator Register). If DBGU_BRGR is set to 0, the baud rate clock
is disabled and the Debug Unit's UART remains inactive. The maximum allowable baud rate is
Master Clock divided by 16. The minimum allowable baud rate is Master Clock divided by (16 x
65536).
Baud Rate
=
--------------------- -
16
MCK
×
CD
Figure
AT91RM9200
26-1. This sharing
323
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