MCF5253VM140J Freescale Semiconductor, MCF5253VM140J Datasheet - Page 265

• Manufacturer Part Number: MCF5253VM140J
• Description: IC MCU 2.1MIPS 140MHZ 225MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF525xr

Specifications of MCF5253VM140J

• 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: -20°C ~ 70°C
• Package / Case: 225-MAPBGA
• Processor Series: MCF525x
• Core: ColdFire V2
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details

15.4.4
To use the timer mode for either the receiver and transmitter channel, program the UCSR registers to the
value $DD.
The transmitter and receiver can be programmed to different clock sources.
Freescale Semiconductor
RCS3–RCS0
TCS3–TCS0
RxRDY
FFULL
Field
1
0
Field
Address MBAR + $1C4 (USCR0
7–4
3–0
Reset
W
R
Receiver Ready
1 One or more characters have been received and are waiting in the receiver buffer FIFO.
0 The CPU has read the receiver buffer and no characters remain in the FIFO after this read.
FIFO Full
1 Three characters have been received and are waiting in the receiver buffer FIFO.
0 The FIFO is not full but can contain as many as two unread characters.
Clock-Select Registers (USCRn)
MBAR + $204 (USCR1)
MBAR2 + $C04 (USCR2)
The Receiver Clock Select bits select the clock source for the receiver channel.
bits necessary for each mode.
The Transmitter Clock Select bits determine the clock source of the UART transmitter channel.
External clock input is not available so this register should always be set to
select internal timer mode.
RCS3
7
1
Table 15-7. Status Registers (USRn) Field Descriptions (continued)
Table 15-8. Clock Select Register (UCSRn) Field Descriptions
RCS2
1
6
Figure 15-11. Clock Select Register (UCSRn)
MCF5253 Reference Manual, Rev. 1
RCS1
RCS3
TCS3
0
5
1
1
1
1
1
1
RCS2
TCS2
1
1
1
1
1
1
NOTE
RCS0
Description
4
1
Description
RCS1
TCS1
0
0
0
0
0
0
RCS0
TCS3
TCS0
1
1
1
1
3
1
1
1
reserved
reserved
reserved
reserved
TIMER
TIMER
SET 1
Mode
TCS2
1
2
Table 15-12
Access: User write only
TCS1
0
1
details the register
UART Modules
TCS0
1
0
15-19