TNETX3150 datasheet(33/113 Pages) TI1

33 / 113 page

TNETX3150/TNETX3150A

ThunderSWITCH™ 15-PORT 10-/100-MBIT/S ETHERNET™ SWITCH

SPWS027F – FEBRUARY 1997 – REVISED SEPTEMBER 1997

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

DRAM and EAM interfaces (continued)

NOTE: Diagram shows end-of-frame

flag format. Multiple buffer

frames use this flag format

only on the last buffer. (End-of

buffer flags are used between

a frame’s buffers.)

C = Channel code/source port code

P = Parity bits for forward pointer

B = Number of valid bytes in data word

S = Frame status (error conditions)

Tg = Pretag (uplink mode)

U = Reserved

Byte 3

Byte 7

Byte 2

Byte 6

Byte 1

Byte 5

Byte 0

Byte 4

CCC

CCCC

Byte 63

Byte 62

Byte 61

Byte 60

Flags

Buffer Data

PTg

Tg Tg Tg CC

Forward Pointer

NOTE: IOB Index buffer bit = 0; this is

a data buffer.

Figure 12. Buffer Diagram Showing Flag Format for a 64-Byte Frame

TNETX3150 数据表(PDF) 33 Page - Texas Instruments

TNETX3150 数据表(HTML) 33 Page - Texas Instruments

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

数据表下载