AT91M40800-33AI SL383 Atmel, AT91M40800-33AI SL383 Datasheet - Page 99
AT91M40800-33AI SL383
Manufacturer Part Number
AT91M40800-33AI SL383
Description
IC ARM MCU 16BIT 100TQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheets
1.AT91M40800-33AU.pdf
(18 pages)
2.AT91R40807-33AI.pdf
(153 pages)
3.AT91M40800-33AI.pdf
(21 pages)
Specifications of AT91M40800-33AI SL383
Core Processor
ARM7
Core Size
16/32-Bit
Speed
33MHz
Connectivity
EBI/EMI, UART/USART
Peripherals
POR, WDT
Number Of I /o
32
Program Memory Type
ROMless
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Other names
AT91M4080033AISL3
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USART: Universal
Synchronous/
Asynchronous
Receiver/
Transmitter
Figure 36. USART Block Diagram
Pin Description
Each USART channel has the following external signals:
Notes:
1354D–ATARM–08/02
Name
RXD
SCK
TXD
1. After a hardware reset, the USART pins are not enabled by default (see “PIO: Parallel I/O Controller” on page 74). The user
2. If the user selects one of the internal clocks, SCK can be configured as a PIO.
USxIRQ
must configure the PIO Controller before enabling the transmitter or receiver.
MCK/8
Description
USART Serial clock can be configured as input or output:
SCK is configured as input if an External clock is selected (USCLKS[1] = 1)
SCK is driven as output if the External Clock is disabled (USCLKS[1] = 0) and Clock output is enabled (CLKO = 1)
Transmit Serial Data is an output
Receive Serial Data is an input
MCK
ASB
APB
AMBA
The AT91X40 Series provides two identical, full-duplex, universal synchronous/asyn-
chronous receiver/transmitters that interface to the APB and are connected to the
Peripheral Data Controller.
The main features are:
•
•
•
•
•
•
•
•
Peripheral Data Controller
Baud Rate Generator
Receiver
Channel
Programmable Baud Rate Generator
Parity, Framing and Overrun Error Detection
Line Break Generation and Detection
Automatic Echo, Local Loopback and Remote Loopback channel modes
Multi-drop Mode: Address Detection and Generation
Interrupt Generation
Two Dedicated Peripheral Data Controller channels
5-, 6-, 7-, 8- and 9-bit character length
Interrupt Control
Control Logic
Transmitter
Channel
Baud Rate Clock
USART Channel
Transmitter
Receiver
AT91X40 Series
Controller
Parallel
PIO:
I/O
RXD
TXD
SCK
99
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