DP83815DUJB National Semiconductor, DP83815DUJB Datasheet - Page 84
![IC, ENET CTRL 10BASET, 100MBPS, LBGA-160](/photos/19/0/190058/4551706_sml.jpg)
DP83815DUJB
Manufacturer Part Number
DP83815DUJB
Description
IC, ENET CTRL 10BASET, 100MBPS, LBGA-160
Manufacturer
National Semiconductor
Datasheet
1.DP83815DUJB.pdf
(108 pages)
Specifications of DP83815DUJB
Data Rate
100Mbps
Ethernet Type
10BASE-T
Supply Current
170mA
Supply Voltage Range
3V To 3.6V
Operating Temperature Range
0°C To +70°C
No. Of Pins
160
Termination Type
SMD
Filter Terminals
SMD
Rohs Compliant
No
Data Rate Max
100Mbps
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DP83815DUJB
Manufacturer:
NS
Quantity:
996
Company:
Part Number:
DP83815DUJB
Manufacturer:
Texas Instruments
Quantity:
10 000
Part Number:
DP83815DUJB
Manufacturer:
NS/国半
Quantity:
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Company:
Part Number:
DP83815DUJB/NOPB
Manufacturer:
Texas Instruments
Quantity:
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5.0 Buffer Management
txDescRead
txFIFOblock
txDescWrite
txFragRead
txDescRefr
txAdvance
State
txIdle
txDescRefr
XferDone
XferDone
txAdvance
XferDone && !OWN
CR:TXE && !CTDD
XferDone && OWN
CR:TXE && CTDD
(descCnt == 0) &&
(descCnt == 0) &&
link == NULL
link != NULL
XferDone
XferDone
XferDone
FifoAvail
!MORE
MORE
Event
link = NULL
(Continued)
txDescWrite
CR:TXE && CTDD
Figure 5-5 Transmit State Diagram
Table 5-5 Transmit State Tables
descCnt == 0 && (cmdsts & MORE)
txDescRead
txDescRead
txFIFOblock
txDescWrite
txFIFOblock
txFragRead
Next State
txDescRefr
descCnt == 0 && !(cmdsts & MORE)
txAdvance
txAdvance
txAdvance
link != NULL
txIdle
txIdle
txIdle
84
Start a burst transfer at address TXDP and a length
derived from TXCFG.
Start a burst transfer to refresh the link field of the current
descriptor.
Set ISR:TXIDLE.
Start a burst transfer into the TxDataFIFO from fragPtr.
The length will be the minimum of txFifoAvail and
descCnt.
Decrement descCnt accordingly.
Start a burst transfer to write the status back to the
descriptor, clearing the OWN bit.
Write the value of TXDP to the txDataFIFO as a handle.
TXDP <- txDescCache.link. Clear CTDD. Start a burst
transfer at address TXDP with a length derived from
TXCFG.
Set CTDD. Set ISR:TXIDLE. Clear CR:TXE.
txFifoBlock
XferDone && !OWN
txDescRead
CR:TXE && !CTDD
Actions
XferDone && OWN
FifoAvail
XferDone
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txFragRead