mcf5274l Freescale Semiconductor, Inc, mcf5274l Datasheet - Page 12
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mcf5274l
Manufacturer Part Number
mcf5274l
Description
Mcf5275 Integrated Microprocessor Family Hardware
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MCF5274L.pdf
(76 pages)
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Features
3.9
Some of the MCF5275 family devices incorporate small, fast, and dedicated hardware accelerators for
random number generation, message digest and hashing, and the DES, 3DES, and AES block cipher
functions. This allows for the implementation of common Internet security protocol cryptography
operations with performance well in excess of software-only algorithms. Refer to
configurations.
3.10 UARTs
The MCF5275 family of microprocessors each contain three (3) UARTs that function independently. Any
of the three UARTs can be clocked by the system bus clock, eliminating the need for an external crystal.
Each UART module contains the following major functional features:
3.11 I
The I
minimizing the interconnection between devices. This bus is suitable for applications requiring occasional
communications over a short distance between many devices. The flexible I
to be connected to the bus for expansion and system development.
The I
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2
2
C includes these distinctive features:
C is a two-wire, bidirectional serial bus that provides a simple, efficient method of data exchange,
Serial communication channel
16-bit divider for clock generation
Internal channel control logic
Interrupt control logic
Maskable interrupts
DMA support
Programmable clock-rate generator
Data formats can be 5, 6, 7 or 8 bits with even, odd or no parity
Up to 2 stop bits in 1/16 increments
Error-detection capabilities
Modem support includes request-to-send (RTS) and clear-to-send (CTS) lines
Transmit and receive FIFO buffers
UART Modes of Operation:
— Full-duplex
— Auto-echo loopback
— Local loopback
— Remote loopback
Compatibility with I
Cryptography
2
C Bus
MCF5275 Integrated Microprocessor Family Hardware Specification, Rev. 1.1
2
C bus standard
Preliminary
2
C allows additional devices
Table 1
Freescale Semiconductor
for device