DESIGN OF A CUSTOM ASIC INCORPORATING CAN™ AND 1 ...

LIST OF FIGURES
2.1 1 – Wire® Network .....................................................................................................................5
2.2 Typical 1 – Wire® Communication Flow ...................................................................................10
2.3 Bidirectional port pin with optional circuit for strong pullup (dashed lines) ..............................12
2.4 Unidirectional port pins with optional circuit for strong pullup (dashed lines) ...........................12
2.5 µC with Built-In 1 – Wire® Master & optional strong pullup circuit (dashed lines) ..................13
2.6 ASIC/FPGA with optional circuit for strong pullup (dashed lines) ............................................14
2.7 UART/RS232 Serial Port Interface .............................................................................................16
2.8 I 2 C interface with optional circuit for extra strong pullup (dashed lines)....................................17
2.9 1 – Wire® Master for a USB interface ........................................................................................17
2.10 Reset/Presence Detect Sequence ................................................................................................20
2.11 Write Zero Time Slot .................................................................................................................21
2.12 Write One/Read One Time Slot .................................................................................................21
2.13 Read Zero Time Slot ..................................................................................................................22
2.14 64 – Bit Unique ROM ‘Registration’ Number ..........................................................................23
2.15 1 – Wire® 8 – bit CRC ..............................................................................................................26
2.16 Linear Network Topology..........................................................................................................36
2.17 Stubbed Network Topology .......................................................................................................36
2.18 Star Network Topology..............................................................................................................37
3.1 Typical CAN Bus Network ......................................................................................................43
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