ICS1892Y-10 datasheet(114/148 Pages) ICST

114 / 148 page

ICS1892, Rev. D, 2/26/01

February 26, 2001

114

Chapter 9

Pin Diagram, Listings, and Descriptions

ICS1892 Data Sheet

RXD0,

RXD1,

RXD2,

RXD3

SRD0,

SRD1,

SRD2,

SRD3

35,

34,

33,

Symbol Receive Data 0–3.

• SRD0 is the least-significant bit and SRD3 is the

most-significant bit of the MII receive data nibble.

• While the ICS1892 asserts RXDV, the ICS1892 transfers the

receive data signals on the SRD0–SRD3 pins to the

MAC/Repeater Interface synchronously on the rising edges

of SRCLK.

RXDV

–

Connect

Receive Data Valid.

For the 100M Symbol Interface, this pin is a no connect. For

more information, see Table 6-1.

RXER

SRD4

Output

Symbol Receive Data 4.

This pin’s description is the same as that given in Table 9-6.

RXTRI

Input

Receive (Interface), Tri-State.

The input on this pin is from a MAC. When the signal on this pin

is logic:

• Low, the MAC indicates that it is not in a tri-state condition.

• High, the MAC indicates that it is in a tri-state condition. In

this case, the ICS1892 acts to ensure that only one PHY is

active at a time.

TXCLK

STCLK

Symbol Transmit Clock.

This pin’s description is the same as that given in Table 9-6. For

100Base-Tx

TXD0–3

STD0,

STD1,

STD2,

STD3

45,

46,

47,

Input

Symbol Transmit Data 0–3.

• STD0 is the least-significant bit and STD3 is the

most-significant bit of the MII transmit data nibble received

from the MAC/repeater.

• While the ICS1892 asserts TXEN, the signals on the

STD0–3 pins are sampled by the ICS1892 synchronously on

the rising edges of STCLK.

TXEN

–

Connect

Transmit Enable.

For the 100M Symbol Interface, this pin is a no connect. For

more information, see Table 6-1.

TXER

STD4

Input

Symbol Transmit Data 4.

This pin’s description is the same as that given in Table 9-6.

Table 9-7.

MAC/Repeater Interface Pins: 100M Symbol Interface (Continued)

MII Pin

Name

100M

Symbol

Name

No.

Type

Pin Description

ICS1892Y-10 датащи(PDF) 114 Page - Integrated Circuit Systems

ICS1892Y-10 датащи(HTML) 114 Page - Integrated Circuit Systems

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

датащи скачать

ссылки URL