MC56F8257MLH Freescale Semiconductor, MC56F8257MLH Datasheet - Page 382

• Manufacturer Part Number: MC56F8257MLH
• Description: DSC 64K FLASH 60MHZ 64-LQFP
• Manufacturer: Freescale Semiconductor
• Series: 56F8xxxr

Specifications of MC56F8257MLH

• Core Processor: 56800E
• Core Size: 16-Bit
• Speed: 60MHz
• Connectivity: CAN, I²C, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Ram Size: 4K x 16
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x12b, D/A 1x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 64-LQFP
• Product: DSCs
• Processor Series: 56800E
• Core: 56800E
• Device Million Instructions Per Second: 60 MIPs
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 54
• Data Ram Size: 8 KB
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Interrupts
11.7.1.1 Transmitter Empty Interrupt
The transmitter empty interrupt is enabled by setting CTRL1[TEIE]. When this interrupt
is enabled, an interrupt is generated while data is transferred from the SCI data register to
the transmit shift register. The interrupt service routine should read the STAT register,
verify that STAT[TDRE] is set, and write the next data to be transmitted to the DATA
register, which clears STAT[TDRE].
11.7.1.2 Transmitter Idle Interrupt
The transmitter idle interrupt is enabled by setting CTRL1[TIIE]. This interrupt indicates
that STAT[TIDLE] is set and the transmitter is no longer sending data, preamble, or
break characters. The interrupt service routine should read the STAT register, verify
STAT[TIDLE] is set, and initiate a preamble, break, or write a data character to the
DATA register. Any of these actions clears STAT[TIDLE] because the transmitter is then
busy.
11.7.1.3 Receiver Full Interrupt
The receiver full interrupt is enabled by setting CTRL1[RFIE]. This interrupt indicates
that receive data is available in the DATA register. The interrupt service routine should
read the STAT register, verify that STAT[RDRF] is set, and then read the data from the
DATA register, which clears STAT[RDRF].
382
Interrupt Source
Transmitter
Receiver
Receiver
STAT[TIDLE]
STAT[RDRF]
STAT[OR]
STAT[OR]
STAT[FE]
STAT[PE]
STAT[NF]
Table 11-28. SCI Interrupt Sources (continued)
Flag
MC56F825x/4x Reference Manual, Rev. 2, 10/2010
CTRL1[RFIE]
CTRL1[REIE]
Local Enable
CTRL1[TIIE]
Preliminary
Transmit Idle interrupt
Receive Data Register Full / Overrun interrupt
Receive Error (FE, NF, PF, or OR) interrupt
Description
Freescale Semiconductor