MC68HC908AS60MFN MOTOROLA [Motorola, Inc], MC68HC908AS60MFN Datasheet - Page 18
MC68HC908AS60MFN
Manufacturer Part Number
MC68HC908AS60MFN
Description
HCMOS Microcontroller Unit
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC908AS60MFN.pdf
(454 pages)
- Current page: 18 of 454
- Download datasheet (6Mb)
Table of Contents
Technical Data
18
21.5
21.5.1
21.5.1.1
21.5.1.2
21.5.2
21.5.2.1
21.5.2.2
21.5.2.3
21.5.2.4
21.5.2.5
21.5.2.6
21.5.2.7
21.5.2.8
21.5.2.9
21.5.3
21.5.3.1
21.5.3.2
21.5.3.3
21.5.3.4
21.5.3.5
21.5.3.6
21.5.3.7
21.5.3.8
21.5.3.9
21.5.4
21.5.4.1
21.5.4.2
21.5.4.3
21.5.4.4
21.5.4.5
21.5.4.6
21.5.4.7
21.5.4.8
21.5.4.9
21.5.4.10
21.5.4.11
21.5.5
21.6
21.6.1
21.6.2
21.6.3
Freescale Semiconductor, Inc.
For More Information On This Product,
BDLC MUX Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
BDLC Protocol Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
Rx Digital Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
J1850 Frame Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
J1850 VPW Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
J1850 VPW Valid/Invalid Bits and Symbols . . . . . . . . . . . . 345
Message Arbitration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Protocol Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352
Rx and Tx Shift Registers. . . . . . . . . . . . . . . . . . . . . . . . . . 352
Rx and Tx Shadow Registers . . . . . . . . . . . . . . . . . . . . . . .353
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Start-of-Frame Symbol (SOF) . . . . . . . . . . . . . . . . . . . . 337
In-Message Data Bytes (Data). . . . . . . . . . . . . . . . . . . . 338
Cyclical Redundancy Check Byte (CRC) . . . . . . . . . . . . 338
End-of-Data Symbol (EOD) . . . . . . . . . . . . . . . . . . . . . . 339
In-Frame Response Bytes (IFR) . . . . . . . . . . . . . . . . . .339
End-of-Frame Symbol (EOF) . . . . . . . . . . . . . . . . . . . . . 340
Inter-Frame Separation Symbol (IFS) . . . . . . . . . . . . . . 340
Break (BREAK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Idle Bus (IDLE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Logic 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Logic 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Normalization Bit (NB) . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Break Signal (BREAK) . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Start-of-Frame Symbol (SOF) . . . . . . . . . . . . . . . . . . . . 344
End-of-Data Symbol (EOD) . . . . . . . . . . . . . . . . . . . . . . 344
End-of-Frame Symbol (EOF) . . . . . . . . . . . . . . . . . . . . . 344
Inter-Frame Separation Symbol (IFS) . . . . . . . . . . . . . . 344
Idle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Invalid Passive Bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Valid Passive Logic 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Valid Passive Logic 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
Valid EOD Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
Valid EOF and IFS Symbols . . . . . . . . . . . . . . . . . . . . . 346
Idle Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .347
Invalid Active Bit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Valid Active Logic 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Valid Active Logic 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Valid SOF Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Valid BREAK Symbol. . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Go to: www.freescale.com
Table of Contents
MC68HC908AS60 — Rev. 1.0
MOTOROLA
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