MCF5272VF66 Freescale, MCF5272VF66 Datasheet - Page 380

MCF5272VF66

Manufacturer Part Number
MCF5272VF66
Description
Manufacturer
Freescale
Datasheet

Specifications of MCF5272VF66

Family Name
MCF5xxx
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
66MHz
Instruction Set Architecture
RISC
Supply Voltage 1 (typ)
3.3V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
196
Package Type
MA-BGA
Lead Free Status / RoHS Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCF5272VF66
Manufacturer:
HYNIX
Quantity:
19
Part Number:
MCF5272VF66
Manufacturer:
FREESCAL
Quantity:
885
Part Number:
MCF5272VF66
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MCF5272VF66
Manufacturer:
FREESCALE
Quantity:
20 000
Part Number:
MCF5272VF66J
Manufacturer:
Freescale
Quantity:
256
Part Number:
MCF5272VF66J
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MCF5272VF66R2
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MCF5272VF66R2J
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
UART Modules
16.5.1.1
As
Note that when autobaud mode is enabled, the UFPDn, UDUn, and UDLn are automatically loaded with
the calculated baud rate. However, the calculated value can be overridden by a programmed value at any
time.
The choice of URT_CLK or CLKIN is programmed in the UCSR.
16.5.1.2
The following sections describe how to calculate baud rates.
16.5.1.2.1
When CLKIN is the UART clocking source, it goes through a divide-by-32 prescaler and then passes
through the 16-bit divider of the concatenated UDUn and UDLn registers. The UFPD register can be used
16-20
Figure 16-23
An external clock signal on the URT_CLK pin that can be divided by 16. When not divided,
URT_CLK provides a synchronous clock mode; when divided by 16, it is asynchronous.
CLKIN supplies an asynchronous clock source that is prescaled by 32 and then divided by the
16-bit value programmed in UDUn and UDLn. See
Registers
programmed in UFPDn.
Programmable Divider
Calculating Baud Rates
URT_CLK
URT_RxD
URT_TxD
CLKIN Baud Rates
CLKIN
shows, the UART transmitter and receiver can use the following clock sources:
(UDUn/UDLn).” The precision of this clock source can be tuned using the 4-bit value
MCF5272 ColdFire
Rx Buffer
Tx Buffer
Figure 16-23. Clocking Source Diagram
Tx
Rx
®
Integrated Microprocessor User’s Manual, Rev. 3
Clocking sources programmed in UCSR
Generator
Prescaler
Prescaler
Clock
x16
x1
UART
Section 16.3.11, “UART Divider Upper/Lower
(UFPD)
Divider
4-Bit
1-Bit Divider
(UDU, UDL)
Prescaler
16-Bit
Freescale Semiconductor

Related parts for MCF5272VF66