XC68HC12A0CPV8 Freescale Semiconductor, XC68HC12A0CPV8 Datasheet - Page 305

• 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

17.4 Message Storage
17.4.1 Background
MC68HC912D60A — Rev. 3.1
Freescale Semiconductor
msCAN12 facilitates a sophisticated message storage system which
addresses the requirements of a broad range of network applications.
Modern application layer software is built upon two fundamental
assumptions:
1. Any CAN node is able to send out a stream of scheduled
2. The internal message queue within any CAN node is organized
messages without releasing the bus between two messages.
Such nodes will arbitrate for the bus right after sending the
previous message and will only release the bus when arbitration
is lost.
such that if more than one message is ready to be sent, the
highest priority message will be sent out first.
CAN station 1
CAN system
MSCAN Controller
TxCAN RxCAN
Transceiver
msCAN12
Controller
Figure 17-1. The CAN System
CAN station 2
CAN
.....
CAN station n
MSCAN Controller
Message Storage
Technical Data
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