LAN91C100-FD-SS SMSC [SMSC Corporation], LAN91C100-FD-SS Datasheet - Page 43
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LAN91C100-FD-SS
Manufacturer Part Number
LAN91C100-FD-SS
Description
FEAST Fast Ethernet Controller with Full Duplex Capability
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.LAN91C100-FD-SS.pdf
(67 pages)
- Current page: 43 of 67
- Download datasheet (355Kb)
SMSC DS – LAN91C100FD REV. B
Choose Bank Select
Call ALLOCATE
Exit Driver Send
DRIVER SEND
Register 2
FIGURE 10 - DRIVE SEND AND ALLOCATE ROUTINES
Write Address Pointer Register
Return Buffers to Upper Layer
Copy Part of TX Data Packet
Set "Ready for Packet" Flag
Write Allocated Packet into
Write Source Address into
Copy Remaining TX Data
Read Allocation Result
Packet # Register
Enqueue Packet
Proper Location
Packet into RAM
into RAM
Register
Yes
Page 43
Read Interrupt Status Register
Issue "Allocate Memory"
Command to MMU
ALLOCATE
Allocation
Passed?
Return
Clear "Ready for Packet" Flag
No
Enable Allocation Interrupt
Store Data Buffer Pointer
Rev. 01-20-06
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