Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

Preview PDF HTML

MPC8280 Datasheet(PDF) 806 Page - Freescale Semiconductor, Inc

Part # MPC8280
Description  PowerQUICC??II Family Reference Manual
PDF  1386 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPC8280 Datasheet(HTML) 806 Page - Freescale Semiconductor, Inc

Back Button MPC8280 Datasheet HTML 802Page - Freescale Semiconductor, Inc MPC8280 Datasheet HTML 803Page - Freescale Semiconductor, Inc MPC8280 Datasheet HTML 804Page - Freescale Semiconductor, Inc MPC8280 Datasheet HTML 805Page - Freescale Semiconductor, Inc MPC8280 Datasheet HTML 806Page - Freescale Semiconductor, Inc MPC8280 Datasheet HTML 807Page - Freescale Semiconductor, Inc MPC8280 Datasheet HTML 808Page - Freescale Semiconductor, Inc MPC8280 Datasheet HTML 809Page - Freescale Semiconductor, Inc MPC8280 Datasheet HTML 810Page - Freescale Semiconductor, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 806 / 1386 page
background image
SCC Ethernet Mode
MPC8280 PowerQUICC II Family Reference Manual, Rev. 1
25-18
Freescale Semiconductor
Figure 25-7 shows an example of how RxBDs are used in receiving.
Figure 25-7. Ethernet Receiving using RxBDs
25.19 SCC Ethernet Transmit Buffer Descriptor
Data is sent to the Ethernet controller for transmission on an SCC channel by arranging it in buffers
referenced by the channel TxBD table. The Ethernet controller uses TxBDs to confirm transmission or
Buffer
0
0x0040
32-Bit Buffer Pointer
1
EF
Receive BD 0
Status
Length
Pointer
0
0x0045
32-Bit Buffer Pointer
0
EF
Receive BD 1
Status
Length
Pointer
1
XXXX
32-Bit Buffer Pointer
E
Receive BD 2
Status
Length
Pointer
1
XXXX
32-Bit Buffer Pointer
E
Receive BD 3
Status
Length
Pointer
Destination Address (6)
Source Address (6)
Type/Length (2)
Buffer
CRC Bytes (4)
Tag Byte (1)
Buffer
Buffer
Old Data from
Empty
64 Bytes
64 Bytes
64 Bytes
64 Bytes
Two Frames
Received in Ethernet
Collision
Line Idle
Present
Time
Time
Buffer Full
Buffer Closed
after CRC Received.
Buffer
Still Empty
Empty
MRBLR = 64 Bytes for this SCC
Empty
Data Bytes (50)
Optional Tag Byte
Collision
Causes Buffer
to be Reused
0
L
1
L
Frame 2
Collided Frame Will
be Overwritten
Appended
Non-Collided Ethernet Frame 1



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com