MCP2518FD datasheet(47/96 Pages) MICROCHIP

47 / 96 page

 2019 Microchip Technology Inc.

DS20006027A-page 47

MCP2518FD

CiTEFSTA – TRANSMIT EVENT FIFO STATUS REGISTER

U-0

—

bit 31

bit 24

U-0

—

bit 23

bit 16

U-0

—

bit 15

bit 8

U-0

HS/C-0

R-0

—

TEFOVIF

TEFFIF( 1)

TEFHIF( 1)

TEFNEIF( 1)

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 31-4

Unimplemented: Read as ‘0’

bit 3

TEFOVIF: Transmit Event FIFO Overflow Interrupt Flag bit

1 = Overflow event has occurred

0 = No overflow event occurred

bit 2

TEFFIF: Transmit Event FIFO Full Interrupt Flag bit( 1)

1 = FIFO is full

0 = FIFO is not full

bit 1

TEFHIF: Transmit Event FIFO Half Full Interrupt Flag bit( 1)

1 = FIFO is ≥ half full

0 = FIFO is < half full

bit 0

TEFNEIF: Transmit Event FIFO Not Empty Interrupt Flag bit( 1)

1 = FIFO is not empty, contains at least one message

0 = FIFO is empty

Note 1:

This bit is read only and reflects the status of the FIFO.

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