TSB43AB21 datasheet(92/109 Pages) TI

92 / 109 page

7–1

7 PHY Register Configuration

There are 16 accessible internal registers in the TSB43AB21 device. The configuration of the registers at addresses

0h through 7h (the base registers) is fixed, whereas the configuration of the registers at addresses 8h through Fh (the

paged registers) is dependent upon which one of eight pages, numbered 0h through 7h, is currently selected. The

selected page is set in base register 7h.

7.1

Base Registers

Table 7–1 shows the configuration of the base registers, and Table 7–2 shows the corresponding field descriptions.

The base register field definitions are unaffected by the selected page number.

A reserved register or register field (marked as Reserved in the following register configuration tables) is read as 0,

but is subject to future usage. All registers in address pages 2 through 6 are reserved.

Table 7–1. Base Register Configuration

ADDRESS

BIT POSITION

ADDRESS

0000

Physical ID

CPS

0001

RHB

IBR

Gap_Count

0010

Extended (111b)

Reserved

Total_Ports (0001b)

0011

Max_Speed (010b)

Reserved

Delay (0000b)

0100

LCtrl

Jitter (000b)

Pwr_Class

0101

Watchdog

ISBR

Loop

Pwr_fail

Timeout

Port_event

Enab_accel

Enab_multi

0110

Reserved

0111

Page_Select

Reserved

Port_Select

TSB43AB21 Datasheet(PDF) 92 Page - Texas Instruments

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