MPC8544DS Freescale Semiconductor, MPC8544DS Datasheet - Page 773
MPC8544DS
Manufacturer Part Number
MPC8544DS
Description
BOARD DEVELOPMENT SYSTEM 8544
Manufacturer
Freescale Semiconductor
Series
PowerQUICC III™r
Type
MPUr
Datasheets
1.MPC8544VTALF.pdf
(117 pages)
2.MPC8544VTALF.pdf
(2 pages)
3.MPC8544VTALF.pdf
(1340 pages)
4.MPC8544DS.pdf
(2 pages)
Specifications of MPC8544DS
Contents
Board
Processor To Be Evaluated
MPC8544E
Data Bus Width
32 bit
Interface Type
Ethernet, I2C
Operating Supply Voltage
- 0.3 V to + 1.1 V
Leaded Process Compatible
Yes
Peak Reflow Compatible (260 C)
Yes
Rohs Compliant
Yes
For Use With/related Products
MPC8544
For Use With
PPC8544EVTANG - EVAL MPC8544 783FCPBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- MPC8544VTALF PDF datasheet
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Freescale Semiconductor
Bits
3
4
5
THLT3 Transmit halt of ring 3. Set by the eTSEC if is no longer processing transmit frames from this TxBD ring, and
THLT4 Transmit halt of ring 4. Set by the eTSEC if is no longer processing transmit frames from this TxBD ring, and
THLT5 Transmit halt of ring 5. Set by the eTSEC if is no longer processing transmit frames from this TxBD ring, and
Name
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
DMA from this ring is disabled. To re-start transmission from this TxBD ring, this bit must be cleared by writing
1 to it. This bit is set only on a general error condition (as in IEVENT[TXE]), regardless of TQUEUE[EN3], or
if no ready TxBDs can be fetched. DMACTRL[GTS] being set by the user does not cause this bit to be set.
Software should examine the halted queue's buffer descriptors for repeatable error conditions before taking it
out of the halt state. Failure to do so may cause an effective livelock, in which the error condition recurs and
halts all queues again.
Repeatable error conditions which cause halt include:
Bus error:
TxBD programming errors:
DMA from this ring is disabled. To re-start transmission from this TxBD ring, this bit must be cleared by writing
1 to it. This bit is set only on a general error condition (as in IEVENT[TXE]), regardless of TQUEUE[EN4], or
if no ready TxBDs can be fetched. DMACTRL[GTS] being set by the user does not cause this bit to be set.
Software should examine the halted queue's buffer descriptors for repeatable error conditions before taking it
out of the halt state. Failure to do so may cause an effective livelock, in which the error condition recurs and
halts all queues again.
Repeatable error conditions which cause halt include:
Bus error:
TxBD programming errors:
DMA from this ring is disabled. To re-start transmission from this TxBD ring, this bit must be cleared by writing
1 to it. This bit is set only on a general error condition (as in IEVENT[TXE]), regardless of TQUEUE[EN5], or
if no ready TxBDs can be fetched. DMACTRL[GTS] being set by the user does not cause this bit to be set.
Software should examine the halted queue's buffer descriptors for repeatable error conditions before taking it
out of the halt state. Failure to do so may cause an effective livelock, in which the error condition recurs and
halts all queues again.
Repeatable error conditions which cause halt include:
Bus error:
TxBD programming errors:
• Invalid BD or data address
• Uncorrectable error on BD or data read
• Ready=1 and length=0
• Invalid BD or data address
• Uncorrectable error on BD or data read
• Ready=1 and length=0
• Invalid BD or data address
• Uncorrectable error on BD or data read
• Ready=1 and length=0
Table 15-16. TSTAT Field Descriptions (continued)
Description
Enhanced Three-Speed Ethernet Controllers
15-41
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