91C94 datasheet(65/120 Pages) SMSC

65 / 120 page

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OFFSET

NAME

EARLY RCV REGISTER

TYPE

READ/WRITE

SYMBOL

ERCV

HIGH

BYTE

LOW

BYTE

RCV

DISCRD

ERCV THRESHOLD

RCV DISCRD - Set to discard a packet being

received.

This bit can be used in conjunction

with ERCV THRESHOLD and ERCV INT to

process a packet header while it is being

received and discard it if the packet is not

desired. Setting this bit will only discard packets

that are still in the process of being received.

If the RCV DISCRD bit is set prior to the end of

a receive packet, RXOVRN bit in the Interrupt

Status Register will be set to indicate that the

packet was discarded and its memory

released. If the receive packet is complete prior

to the RCV DISCARD bit being set, the packet is

received normally and RCV INT bit is set in the

Interrupt Status Register. The RCV DISCARD

bit is self-clearing.

ERCV THRESHOLD - Threshold for ERCV

interrupt.

Specified

byte

multiples.

Whenever the number of bytes written in

memory

for

the

presently

received

packet

exceeds the ERCV THRESHOLD, ERCV INT bit

of the INTERRUPT STATUS REGISTER is set.

91C94 Datasheet(PDF) 65 Page - SMSC Corporation

91C94 Datasheet(HTML) 65 Page - SMSC Corporation

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