
ML9620 User’s Manual
Contents
Contents – 2
3.5
Updating a Transmit Object........................................................................................................................ 3-6
3.6
Configuration of a Receive Object.............................................................................................................. 3-7
3.7
Handling of Received Object...................................................................................................................... 3-8
3.8
Configuration of a FIFO Buffer .................................................................................................................. 3-9
3.8.1
Reception of Messages with FIFO Buffers ........................................................................................... 3-9
3.8.2
Reading from a FIFO Buffer................................................................................................................. 3-9
3.9
Handling Interrupt..................................................................................................................................... 3-11
3.10 Configuration of the Bit Timing ............................................................................................................... 3-12
3.10.1 Bit Time and Bit Rate ......................................................................................................................... 3-12
3.10.2 Propagation Time Segment ................................................................................................................. 3-13
3.10.3 Configuration of the CAN Protocol Controller ................................................................................... 3-14
3.10.4 Calculation of the Bit Timing Parameter ............................................................................................ 3-14
3.11 Optional Operating modes ........................................................................................................................ 3-15
3.11.1 CAN Bus Analyze mode ..................................................................................................................... 3-15
3.11.2 Silent mode ......................................................................................................................................... 3-15
3.11.3 Loop Back mode ................................................................................................................................. 3-15
3.11.4 Loop Back combined with Silent mode .............................................................................................. 3-16
3.11.5 Basic mode.......................................................................................................................................... 3-16
3.11.6 Software control of Pin TX ................................................................................................................. 3-16
Chapter 4
MCU Interface
4.1
Parallel Interface ......................................................................................................................................... 4-1
4.2
Serial Interface............................................................................................................................................ 4-2
4.2.1
Data write.............................................................................................................................................. 4-2
4.2.2
Data read ............................................................................................................................................... 4-2
4.3
Timing of the WAIT output signal ............................................................................................................. 4-3
4.4
Interrupt timing ........................................................................................................................................... 4-3
Chapter 5
Electrical Characteristics
5.1
Electrical Characteristics ............................................................................................................................ 5-1
5.1.1
Absolute Maximum Ratings ................................................................................................................. 5-1
5.1.2
Recommended Operating Conditions ................................................................................................... 5-1
5.1.3
DC Characteristics ................................................................................................................................ 5-2
5.1.4
AC Characteristics ................................................................................................................................ 5-3
5.1.4.1
Parallel mode ................................................................................................................................... 5-3
5.1.4.2
Serial mode...................................................................................................................................... 5-5
5.1.4.3
Other Timing characteristics ........................................................................................................... 5-6
5.2
Timing Diagrams ........................................................................................................................................ 5-7
5.2.1
Separate Bus mode................................................................................................................................ 5-8
5.2.2
Separate Bus/Address Latch mode........................................................................................................ 5-9
5.2.3
Multiplexed Bus mode ........................................................................................................................ 5-10
5.2.4
Serial mode ......................................................................................................................................... 5-11
5.2.5
Other Timing....................................................................................................................................... 5-12
Appendixes
Appendix 1
Package Dimensions ....................................................................................................................... A-1
Appendix 2
Recommned Circuit ........................................................................................................................ A-2