SMSC LAN91C111 Figure 10.6 Interrupt Generation for Transmit, Receive, MMU

10/100 Non-PCI Ethernet Single Chip MAC + PHY

Datasheet

INTERRUPT

STATUS REGISTER

RCV

INT

TX EMPTY

TWO INT

	'NOT EMPTY'
PACKET NUMBER	RX FIFO
REGISTER	PACKET NUMBER

OPTIONS TX

INT

ALLOC

INT

TX

FIFO

'EMPTY'

TX COMPLETION FIFO 'NOT EMPTY'

TX DONE

PACKET NUMBER

CPU ADDRESS

RX

FIFO

RX PACKET

NUMBER

CSMA ADDRESS

CSMA/CD

LOGICAL PACKET #

ADDRESS

	MMU
M.S. BIT ONLY	PACK # OUT
	PHYSICAL ADDRESS

RAM

Figure 10.6 Interrupt Generation for Transmit, Receive, MMU

Revision 1.91 (08-18-08) 94 SMSC LAN91C111 REV C

DATASHEET