MCF5272VM66J Freescale Semiconductor, MCF5272VM66J Datasheet - Page 382
MCF5272VM66J
Manufacturer Part Number
MCF5272VM66J
Description
IC MCU 166MHZ 196MAPBGA
Manufacturer
Freescale Semiconductor
Series
MCF527xr
Datasheets
1.MCF5272CVF66J.pdf
(544 pages)
2.MCF5272CVF66J.pdf
(12 pages)
3.MCF5272VM66J.pdf
(44 pages)
Specifications of MCF5272VM66J
Core Processor
Coldfire V2
Core Size
32-Bit
Speed
66MHz
Connectivity
EBI/EMI, Ethernet, I²C, SPI, UART/USART, USB
Peripherals
DMA, WDT
Number Of I /o
32
Program Memory Size
16KB (4K x 32)
Program Memory Type
ROM
Ram Size
1K x 32
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
196-MAPBGA
Processor Series
MCF527x
Core
ColdFire V2
Data Bus Width
32 bit
Data Ram Size
64 KB
Interface Type
I2C, UART, Ethernet, SPI, USB, QSPI
Maximum Clock Frequency
166 MHz
Number Of Timers
4
Operating Supply Voltage
1.4 V to 1.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JLINK-CF-BDM26, EWCF
Development Tools By Supplier
NNDK-MOD5272-KIT, NNDK-MOD5270-KIT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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UART Modules
Once enabled, the autobaud detector can calculate the transmission rate only once. If a new calculation is
required, UCR[ENAB] must first be cleared and then set again. Thus, a new UART connection cannot be
hot-plugged into an active UART connection if that connection is operating at a different rate without first
reinitializing the autobaud detector.
16.5.2
Figure 16-24
operating registers, which are described generally in the following sections and described in detail in
Section 16.3, “Register
16.5.2.1
The transmitter is enabled through the UART command register (UCRn). When it is ready to accept a
character, the UART sets USRn[TxRDY]. The transmitter converts parallel data from the CPU to a serial
bit stream on TxD. It automatically sends a start bit followed by the programmed number of data bits, an
optional parity bit, and the programmed number of stop bits. The lsb is sent first. Data is shifted from the
transmitter output on the falling edge of the clock source.
After the stop bits are sent, if no new character is in the transmitter holding register, the TxD output
remains high (mark condition) and the transmitter empty bit, USRn[TxEMP], is set. Transmission resumes
and TxEMP is cleared when the CPU loads a new character into the UART transmitter buffer (UTBn). If
the transmitter receives a disable command, it continues until any character in the transmitter shift register
is completely sent.
16-22
UART Transmit
UART Receive
FIFO (URB)
FIFO (UTB)
(24 Bytes)
(24 Bytes)
Transmitter and Receiver Operating Modes
Transmitting
is a functional block diagram of the transmitter and receiver showing the command and
MCF5272 ColdFire
Figure 16-24. Transmitter and Receiver Functional Diagram
Descriptions.”
Receiver FIFO
UART Command Register (UCR0)
UART Mode Register 1 (UMR1)
UART Mode Register 2 (UMR2)
UART Status Register (USR0)
Transmitter FIFO
Receiver Shift Register
Transmitter Shift Register
®
Integrated Microprocessor User’s Manual, Rev. 3
UART
R/W
R/W
R
W
W
R
Freescale Semiconductor
External
Interface
RXD
TXD
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