MCF5272VF66 Freescale, MCF5272VF66 Datasheet - Page 368

• Manufacturer Part Number: MCF5272VF66
• Manufacturer: Freescale

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

UART Modules
16.3.4
The UART clock-select registers (UCSRn) select an external clock on the URT_CLK input (divided by 1
or 16) or a prescaled CLKIN as the clocking source for the transmitter and receiver. See
“Transmitter/Receiver Clock
CLKIN for both, set UCSRn to 0xDD.
Table 16-5
16-8
Bits
Bits
7–4
3–0
1
0
Address
Reset
Field
R/W
RxRDY Receiver ready
FFULL
Name
Name
describes UCSRn fields.
RCS
TCS
UART Clock-Select Registers (UCSRn)
FIFO full. This bit is equivalent to URF[FULL].
0 The FIFO is not full but may hold unread characters.
1 A character was received and the receiver FIFO is now full. Any characters received when the FIFO is full
0 The CPU has read the receiver buffer and no characters remain in the FIFO after this read.
1 One or more characters were received and are waiting in the receiver buffer FIFO.
7
Receiver clock select. Selects the clock source for the receiver channel.
1101 Prescaled CLKIN
1110 URT_CLK divided by 16
1111 URT_CLK
Transmitter clock select. Selects the clock source for the transmitter channel.
1101 Prescaled CLKIN
1110 URT_CLK divided by 16
1111 URT_CLK
are lost.
MCF5272 ColdFire
Figure 16-5. UART Clock-Select Registers (UCSRn)
Table 16-4. USRn Field Descriptions (continued)
Source.” The transmitter and receiver can use different clock sources. To use
RCS
Table 16-5. UCSRn Field Descriptions
®
MBAR + 0x104 (UCSR0), 0x144 (UCSR1)
Integrated Microprocessor User’s Manual, Rev. 3
4
0000_0000
Write only
Description
Description
3
TCS
Freescale Semiconductor
Section 16.5.1,
0