MC9S12C32CFUE16 Freescale Semiconductor, MC9S12C32CFUE16 Datasheet - Page 399

• Manufacturer Part Number: MC9S12C32CFUE16
• Description: IC MCU 32K FLASH 16MHZ 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12C32CFUE16

• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 60
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Processor Series: S12C
• Core: HCS12
• Data Bus Width: 16 bit
• Data Ram Size: 2 KB
• Interface Type: CAN/SCI/SPI
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 60
• Number Of Timers: 8
• Operating Supply Voltage: - 0.3 V to + 6.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: M68EVB912C32EE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• For Use With: CML12C32SLK - KIT STUDENT LEARNING 16BIT HCS12
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

If software clears TE while a transmission is in progress (TC = 0), the frame in the transmit shift register
continues to shift out. To avoid accidentally cutting off the last frame in a message, always wait for TDRE
to go high after the last frame before clearing TE.
To separate messages with preambles with minimum idle line time, use this sequence between messages:
13.4.3.3
Writing a logic 1 to the send break bit, SBK, in SCI control register 2 (SCICR2) loads the transmit shift
register with a break character. A break character contains all logic 0s and has no start, stop, or parity bit.
Break character length depends on the M bit in SCI control register 1 (SCICR1). As long as SBK is at
logic 1, transmitter logic continuously loads break characters into the transmit shift register. After software
clears the SBK bit, the shift register finishes transmitting the last break character and then transmits at least
one logic 1. The automatic logic 1 at the end of a break character guarantees the recognition of the start bit
of the next frame.
The SCI recognizes a break character when a start bit is followed by eight or nine logic 0 data bits and a
logic 0 where the stop bit should be. Receiving a break character has these effects on SCI registers:
13.4.3.4
An idle character contains all logic 1s and has no start, stop, or parity bit. Idle character length depends on
the M bit in SCI control register 1 (SCICR1). The preamble is a synchronizing idle character that begins
the first transmission initiated after writing the TE bit from 0 to 1.
If the TE bit is cleared during a transmission, the Tx output signal becomes idle after completion of the
transmission in progress. Clearing and then setting the TE bit during a transmission queues an idle
character to be sent after the frame currently being transmitted.
Freescale Semiconductor
1. Write the last byte of the first message to SCIDRH/L.
2. Wait for the TDRE flag to go high, indicating the transfer of the last frame to the transmit shift
3. Queue a preamble by clearing and then setting the TE bit.
4. Write the first byte of the second message to SCIDRH/L.
•
•
•
•
register.
Sets the framing error flag, FE
Sets the receive data register full flag, RDRF
Clears the SCI data registers (SCIDRH/L)
May set the overrun flag, OR, noise flag, NF, parity error flag, PE, or the receiver active flag, RAF
(see
Register 2 (SCISR2)”
Section 13.3.2.4, “SCI Status Register 1 (SCISR1)”
Break Characters
Idle Characters
MC9S12C-Family / MC9S12GC-Family
Chapter 13 Serial Communications Interface (S12SCIV2) Block Description
Rev 01.24
and
Section 13.3.2.5, “SCI Status
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