MCF5272VM66 Freescale Semiconductor, MCF5272VM66 Datasheet - Page 367

• Manufacturer Part Number: MCF5272VM66
• Description: IC MPU 66MHZ COLDFIRE 196-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF527xr

Specifications of MCF5272VM66

• 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
• 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
• Cpu Speed: 66MHz
• Embedded Interface Type: UART, QSPI, USB, TDM
• Digital Ic Case Style: BGA
• No. Of Pins: 196
• Supply Voltage Range: 3V To 3.6V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Compliant

16.3.3
The USRn,
Table 16-4
Freescale Semiconductor
Bits
7
6
5
4
3
2
Address
Reset
Field
TxEMP Transmitter empty.
R/W
TxRDY
Name
RB
OE
FE
PE
describes USRn fields.
Figure
UART Status Registers (USRn)
Received break. The received break circuit detects breaks that originate in the middle of a received
character. However, a break in the middle of a character must persist until the end of the next detected
character time.
0 No break was received.
1 An all-zero character of the programmed length was received without a stop bit. RB is valid only when
Framing error.
0 No framing error occurred.
1 No stop bit was detected when the corresponding data character in the FIFO was received. The stop-bit
Parity error. Valid only if RxRDY = 1.
0 No parity error occurred.
1 If UMR1n[PM] = 0x (with parity or force parity), the corresponding character in the FIFO was received with
Overrun error. Indicates whether an overrun occurs.
0 No overrun occurred.
1 One or more characters in the received data stream have been lost. OE is set upon receipt of a new
0 The transmitter buffer is not empty. Either a character is being shifted out, or the transmitter is disabled.
1 The transmitter has underrun (both the transmitter holding register and transmitter shift registers are
Transmitter ready.
0 The CPU loaded the transmitter holding register or the transmitter is disabled.
1 The transmitter holding register is empty and ready for a character. TxRDY is set when a character is sent
RB
7
RxRDY = 1. Only a single FIFO position is occupied when a break is received. Further entries to the FIFO
are inhibited until RxD returns to the high state for at least one-half bit time, which is equal to two
successive edges of the UART clock.
check occurs in the middle of the first stop-bit position. FE is valid only when RxRDY = 1.
incorrect parity. If UMR1n[PM] = 11 (multidrop), PE stores the received A/D bit.
character when the FIFO is full and a character is already in the shift register waiting for an empty FIFO
position. When this occurs, the character in the receiver shift register and its break detect, framing error
status, and parity error, if any, are lost. OE is cleared by the
The transmitter is enabled/disabled by programming UCRn[TC].
empty). This bit is set after transmission of the last stop bit of a character if there are no characters in the
transmitter holding register awaiting transmission.
to the transmitter shift register and when the transmitter is first enabled. If the transmitter is disabled,
characters loaded into the transmitter holding register are not sent.
16-4, shows status of the transmitter, the receiver, and the FIFO.
MCF5272 ColdFire
FE
6
Figure 16-4. UART Status Registers (USRn)
Table 16-4. USRn Field Descriptions
®
PE
5
Integrated Microprocessor User’s Manual, Rev. 3
MBAR + 0x104 (USR0), 0x144 (USR1)
OE
4
0000_0000
Read only
Description
TxEMP
3
RESET ERROR STATUS
TxRDY
2
FFULL
1
command in UCRn.
RxRDY
UART Modules
0
16-7