DS3251 データシートの表示（PDF） - Dallas Semiconductor -> Maxim Integrated

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DS3251

Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs

Dallas Semiconductor -> Maxim Integrated 

DS3251/DS3252/DS3253/DS3254

Register Name:

Register Description:

Register Address:

SRn

Status Register

03h, 13h, 23h, 33h

Bit

Name

Default

7

6

5

4

3

—

—

TDM

PRBS

—

—

—

0

0

—

2

1

0

—

RLOL

RLOS

—

1

1

Bit 5: Transmitter Driver Monitor (TDM). This read-only status bit indicates the current state of the transmit driver

monitor. See Section 9.6 for more information.

0 = the transmitter is operating normally

1 = the transmitter amplitude is out of range

Bit 4: PRBS Detector Output (PRBS). This read-only status bit indicates the current state of the receiver’s PRBS

detector. See Table 6-H for the expected PRBS pattern.

0 = in sync with expected pattern

1 = out of sync, expected pattern not detected

Bit 1: Receiver Loss of Lock (RLOL). This read-only status bit indicates the current state of the receiver clock

recovery PLL.

0 = the receiver PLL is locked onto the incoming signal

1 = the receiver PLL is not locked onto the incoming signal

Bit 0: Receiver Loss of Signal (RLOS). This read-only status bit indicates the current state of the receiver loss-of-

signal detector.

0 = signal present

1 = loss of signal

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