MCF5253CVM140 Freescale Semiconductor, MCF5253CVM140 Datasheet - Page 268

• Manufacturer Part Number: MCF5253CVM140
• Description: IC MPU 32BIT 140MHZ 225-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF525xr

Specifications of MCF5253CVM140

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 140MHz
• Connectivity: CAN, EBI/EMI, I²C, QSPI, UART/USART, USB OTG
• Peripherals: DMA, WDT
• Program Memory Type: ROMless
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 1.08 V ~ 1.32 V
• Data Converters: A/D 6x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 225-MAPBGA
• Family Name: MCF5xxx
• Device Core: ColdFire V2
• Device Core Size: 32b
• Frequency (max): 140MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 1.2/3.3V
• Operating Supply Voltage (max): 1.32/3.6V
• Operating Supply Voltage (min): 1.08/3V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 225
• Package Type: MA-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Compliant

UART Modules
15.4.5.2.2
The “transmitter enable” command enables operation of the channel's transmitter. The TxEMP and
TxRDY bits in the USR are also set. If the transmitter is already enabled, this command has no effect.
15.4.5.2.3
The “transmitter disable” command terminates transmitter operation and clears the TxEMP and TxRDY
bits in the USR. However, if a character is being transmitted when the transmitter is disabled, the
transmission of the character is completed before the transmitter becomes inactive. If the transmitter is
already disabled, this command has no effect.
15.4.5.2.4
Do not use this bit combination because the result is indeterminate.
15.4.5.3
Bits RC1 and RC0 select a single command as listed in
15.4.5.3.1
The “no action taken” command causes the receiver to stay in its current mode. If the receiver is enabled,
it remains enabled; if disabled, it remains disabled.
15.4.5.3.2
The “receiver enable” command enables operation of the channel's receiver. If the UART module is not in
multidrop mode, this command also forces the receiver into the search-for-start-bit state. If the receiver is
already enabled, this command has no effect.
15.4.5.3.3
The “receiver disable” command immediately disables the receiver. Any character being received is lost.
The command has no effect on the receiver status bits or any other control register. If the UART module
is programmed to operate in the local loopback mode or multidrop mode, the receiver operates even though
this command is selected. If the receiver is already disabled, this command has no effect.
15.4.5.3.4
Do not use this bit combination because the result is indeterminate.
15-22
Receiver Commands
Transmitter Enable
Transmitter Disable
Do Not Use
No Action Taken
Receiver Enable
Receiver Disable
Do Not Use
RC1
0
0
1
1
MCF5253 Reference Manual, Rev. 1
Table 15-11. RCx Control Bits
RC0
0
1
0
1
Receiver Disable
No Action Taken
Receiver Enable
Do Not Use
Table
Command
15-11.
Freescale Semiconductor