MC68HC912BD32 Datasheet, PDF (172/292 Pages) Freescale Semiconductor, Inc – Advance Information

Freescale Semiconductor, Inc.
Byteflight™ Module
Features
The basic features of the Serial Bus Interface are as follows:
• Modular Architecture.
• Implementation of the BMW Byteflight™ protocol.
– 1 byte identifier.
– 1 byte data length field (4 bits length, 4 bits reserved).
– 0–12 bytes data.
– 2 bytes checksum, hardware CRC generation and checking.
– bit rate 10 Mbps.
– no collision on the bus.
– non-return-to-zero (NRZ) format.
• Double buffered receive storage scheme.
• 16 Message Buffers of 0–12 bytes data length.
• Programmable Message Buffer Configuration (transmit, receive,
FIFO).
• Content-related addressing.
• Receive FIFO for bus monitoring with programmable acceptance
filter.
• 11 maskable interrupt sources, generating five CPU interrupt
vectors.
• Programmable bus master function.
• Programmable wake-up function.
• Low power sleep mode.
MC68HC912BD32 Rev 1.0
Byteflight™ Module
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