MCP201
TABLE 1-2:
State
OVERVIEW OF OPERATIONAL MODES
Transmitter
Voltage Regulator
Operation
Comments
POR
OFF
OFF
Read CS/WAKE.
If low, then READY.
Sample FAULT/SLPS and
select slope
If high, READY1 mode.
Ready
OFF
OFF
ON
ON
ON
If CS/WAKE rising edge, then Bus Off state
Operation mode.
Ready1
If CS/WAKE falling edge,
then READY mode.
Bus Off state
Operation
Power-down
ON
If CS/WAKE falling edge,
then Power down.
Normal Operation mode
Low-Power mode
OFF
OFF
On LIN bus falling, go to
READY mode.
On CS/WAKE rising edge, go
to Operational mode
Note:
After power-on, CS will not be sampled until VREG has stabized and an additional 600 µs has elapsed. The
microcontroller should toggle CS approximately 1mS after RESET to ensure that CS will be recognized.
© 2007 Microchip Technology Inc.
DS21730F-page 5
MICROCHIP [ MICROCHIP ]
