XC68HC12A0CPV8 Freescale Semiconductor, XC68HC12A0CPV8 Datasheet - Page 337

• Manufacturer Part Number: XC68HC12A0CPV8
• Description: IC, 16BIT MCU, 68HC12, 8MHZ, TQFP-112
• Manufacturer: Freescale Semiconductor

Specifications of XC68HC12A0CPV8

• Controller Family/series: 68HC12
• No. Of I/o's: 68
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2KB
• Cpu Speed: 8MHz
• No. Of Timers: 1
• Core Size: 16 Bit
• Program Memory Size: 60KB
• Peripherals: ADC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MC68HC912D60A — Rev. 3.1
Freescale Semiconductor
WARNING:
NOTE:
BOFFIF — BUSOFF Interrupt Flag
OVRIF — Overrun Interrupt Flag
RXF — Receive Buffer Full
To ensure data integrity, no registers of the receive buffer shall be read
while the RXF flag is cleared.
The CRFLG register is held in the reset state when the SFTRES bit in
CMCR0 is set.
This flag is set when the msCAN12 goes into BUSOFF status, due to
the Transmit Error counter exceeding 255. It cannot be cleared before
the msCAN12 has monitored 128 times 11 consecutive recessive bits
on the bus. If not masked, an Error interrupt is pending while this flag
is set.
This flag is set when a data overrun condition occurrs. If not masked,
an Error interrupt is pending while this flag is set.
The RXF flag is set by the msCAN12 when a new message is
available in the foreground receive buffer. This flag indicates whether
the buffer is loaded with a correctly received message. After the CPU
has read that message from the receive buffer, the RXF flag must be
handshaken (cleared) in order to release the buffer. A set RXF flag
prohibits the exchange of the background receive buffer into the
foreground buffer. If not masked, a Receive interrupt is pending while
this flag is set.
0 = No BUSOFF status has been reached.
1 = msCAN12 went into BUSOFF status.
0 = No data overrun has occurred.
1 = A data overrun has been detected.
0 = The receive buffer is released (not full).
1 = The receive buffer is full. A new message is available.
MSCAN Controller
Programmer’s Model of Control Registers
MSCAN Controller
Technical Data
337