TSB41AB3MPFPEP.A datasheet(20/56 Pages) TI2

20 / 56 page

TSB41AB3EP

IEEE 1394a2000 THREEPORT CABLE TRANSCEIVER/ARBITER

SGLS122C − JULY 2002 − REVISED JUNE 2008

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

APPLICATION INFORMATION

internal register configuration (continued)

Table 4. Page 0 (Port Status) Register Field Descriptions

FIELD

SIZE

TYPE

DESCRIPTION

AStat

TPA line state. This field indicates the TPA line state of the selected port, encoded as follows:

Code

Arb Value

invalid

BStat

TPB line state. This field indicates the TPB line state of the selected port. This field has the same encoding as

the Astat field.

Child/parent status. A 1 indicates that the selected port is a child port. A 0 indicates that the selected port is the

parent port. A disconnected, disabled, or suspended port is reported as a child port. The Ch bit is invalid after a

bus-reset until tree-ID has completed.

Con

Debounced port connection status. This bit indicates that the selected port is connected. The connection must

be stable for the debounce time of approximately 341 ms for the con bit to be set to 1. The con bit is reset to 0 by

hardware reset and is unaffected by bus-reset.

NOTE: The con bit indicates that the port is physically connected to a peer PHY, but the port is not necessarily

active.

Bias

Debounced incoming cable bias status. A 1 indicates that the selected port is detecting incoming cable bias.

The incoming cable bias must be stable for the debounce time of 52

µs for the bias bit to be set to 1.

Dis

Rd/Wr

Port disabled control. If 1, the selected port is disabled. The dis bit is reset to 0 by hardware reset (all ports are

enabled for normal operation following hardware reset). The dis bit is not affected by bus-reset.

Peer_Speed

Port peer speed. This field indicates the highest speed capability of the peer PHY connected to the selected

port, encoded as follows:

Code

Peer Speed

000

S100

001

S200

010

S400

011−111

invalid

The Peer_Speed field is invalid after a bus-reset until self-ID has completed.

NOTE: Peer speed codes higher than 010b (S400) are defined in 1394a-2000. However, the TSB41AB3 is only

capable of detecting peer speeds up to S400.

PIE

Rd/Wr

Port event interrupt enable. When set to 1, a port event on the selected port sets the port event interrupt (PEI) bit

and notify the link. This bit is reset to 0 by a hardware reset, and is unaffected by bus-reset.

Fault

Rd/Wr

Fault. This bit indicates that a resume-fault or suspend-fault has occurred on the selected port, and that the port

is in the suspended state. A resume-fault occurs when a resuming port fails to detect incoming cable bias from

its attached peer. A suspend-fault occurs when a suspending port continues to detect incoming cable bias from

its attached peer. Writing 1 to this bit clears the fault bit to 0. This bit is reset to 0 by hardware reset and is

unaffected by bus-reset.

TSB41AB3MPFPEP.A 数据表(PDF) 20 Page - Texas Instruments

TSB41AB3MPFPEP.A 数据表(HTML) 20 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

数据表下载

链接网址

TSB41AB3MPFPEP.A 数据表(PDF) 20 Page - Texas Instruments

TSB41AB3MPFPEP.A 数据表(HTML) 20 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

数据表 下载

链接网址

数据表下载