MPC8544VTALF Freescale Semiconductor, MPC8544VTALF Datasheet - Page 840
![MPU POWERQUICC III 783-PBGA](/photos/37/62/376266/mpc8544e_image_sml.jpg)
MPC8544VTALF
Manufacturer Part Number
MPC8544VTALF
Description
MPU POWERQUICC III 783-PBGA
Manufacturer
Freescale Semiconductor
Datasheets
1.MPC8544VTALF.pdf
(117 pages)
2.MPC8544VTALF.pdf
(2 pages)
3.MPC8544VTALF.pdf
(1340 pages)
Specifications of MPC8544VTALF
Processor Type
MPC85xx PowerQUICC III 32-Bit
Speed
667MHz
Voltage
1V
Mounting Type
Surface Mount
Package / Case
783-FCPBGA
Processor Series
MPC85xx
Core
e500
Data Bus Width
32 bit
Maximum Clock Frequency
667 MHz
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Data Ram Size
32 KB
I/o Voltage
1.8 V, 3.3 V
Interface Type
I2C, HSSI, DUART
Minimum Operating Temperature
0 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MPC8544VTALF
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
MPC8544VTALFA
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Enhanced Three-Speed Ethernet Controllers
Table 15-66
15.5.3.7
This section provides detailed descriptions of the registers used for hash functions. All of the registers are
32 bits wide. The DA field of every received frame is processed through a 32-bit CRC generator (CRC-32
polynomial), and the 8 or 9 most significant bits of the CRC are mapped to a hash table entry. The user
can enable a hash entry by setting its bit. A hash entry usually represents a set of addresses. A hash table
hit occurs if the DA CRC result points to an enabled hash entry. Software may need to further filter the
address in order to eliminate false-positive hits in the hash table.
If RCTRL[GHTX] = 0, the 8 most significant bits of the CRC are used as the hash table index. In this case,
registers IGADDR0–IGADDR7 comprise a 256-entry hash table exclusively for individual (unicast)
address matching, while registers GADDR0–GADDR7 comprise a 256-entry hash table for group
(multicast) address matching. If RCTRL[GHTX] = 1, the group hash table is extended to all 512 entries,
and the 9 most significant bits of the CRC are used as the hash table index. In this case, registers
IGADDR0–IGADDR7 hold hash table entries 0–255 for group addresses, while registers
GADDR0–GADDR7 hold entries 256–511 of the extended group hash table.
See
15.5.3.7.1
The IGADDRn registers are written by the user. Together these registers represent, depending on
RCTRL[GHTX], either the 256 entries of the individual address hash table, or the first 256 entries of the
extended group address hash table used in the address recognition process. The user can enable a hash
entry by setting the appropriate bit. A hash table hit occurs if the DA CRC-32 result points to an enabled
hash entry.
Figure 15-100
15-108
10–31
Bits
0–9
Offset eTSEC1:0x2_4800+ 4 × n ; eTSEC3:0x2_5800+ 4 × n
Reset
Section 15.6.3.7.2, “Hash Table Algorithm”
W
R
Name
RREJ
0
—
describes the fields of the RREJ register.
Hash Function Registers
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
describes the definition for the IGADDRn register.
Individual/Group Address Registers 0–7 (IGADDR n )
Reserved
Receive filer rejected packet counter. Increments for each frame with valid CRC received, but rejected by
the receive queue filer—either due to a matching rule that asserted the REJ flag or due to filing to a RxBD
ring that was not enabled (see IEVENT[FIQ] error).
Figure 15-100. IGADDR n Register Definition
Table 15-102. RREJ Field Descriptions
for more information on the hash algorithm.
IGADDR n
All zeros
Description
Freescale Semiconductor
Access: Read/Write
31
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