LAN91C100FD-ST SMSC, LAN91C100FD-ST Datasheet - Page 47

• Manufacturer Part Number: LAN91C100FD-ST
• Description: Ethernet ICs Non-PCI 10/100 Ethernet MAC
• Manufacturer: SMSC
• Type: Single Chip MAC and PHY Controllerr

Specifications of LAN91C100FD-ST

• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Product: Ethernet Controllers
• Number Of Transceivers: 1
• Standard Supported: 802.3
• Data Rate: 10 MB, 100 MB
• Supply Voltage (max): 7 V
• Supply Voltage (min): 0.3 V
• Supply Current (max): 40 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-208
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FEAST Fast Ethernet Controller with Full Duplex Capability
TXEMPTY INTR
Write Acknowledge Reg. with
TXEMPTY Bit Set
Read TXEMPTY & TX INTR
TXEMPTY = 1
TXEMPTY = 0
TXEMPTY = X
&
&
&
TXINT = 0
TXINT = 0
TXINT = 1
(Everything went through
(Waiting for Completion)
(Transmission Failed)
successfully)
Read Pkt. # Register & Save
Write Address Pointer
Register
Read Status Word from RAM
Update Statistics
Update Variables
Issue "Release" Command
Acknowledge TXINTR
Re-Enable TXENA
Restore Packet Number
Return to ISR
Figure 5.6 - TXEMPTY INTR (Assumes Auto release Option Selected)
SMSC LAN91C100FD Rev. D
Page 47
Revision 1.0 (09-22-08)
DATASHEET