XRT83L38(2007) データシートの表示（PDF） - Exar Corporation

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XRT83L38
(Rev.:2007)

OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR

Exar Corporation 

REV. 1.0.2

XRT83L38

OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR

SIGNAL NAME LEAD # TYPE

DESCRIPTION

TAOS_0

D6

TAOS_1

B6

TAOS_2

A5

TAOS_3

C6

TAOS_4

T6

TAOS_5

U6

TAOS_6

V6

TAOS_7

R6

I Transmit All Ones for Channel _0 - Hardware mode

Setting this pin “High” enables the transmission of an “All Ones” Pattern from Channel

_0. A “Low” level stops the transmission of the “All Ones” Pattern.

Transmit All Ones for Channel _1

Transmit All Ones for Channel _2

Transmit All Ones for Channel _3

Transmit All Ones for Channel _4

Transmit All Ones for Channel _5

Transmit All Ones for Channel _6

Transmit All Ones for Channel _7

NOTE: Internally pulled “Low” with a 50kΩ resistor for all channels.

TXON_0

A13

TXON_1

D12

TXON_2

C12

TXON_3

B12

TXON_4

V13

TXON_5

U13

TXON_6

R12

TXON_7

R13

I Transmitter Turn On for Channel _0

Hardware mode

Setting this pin "High" turns on the Transmit and Receive Sections of Channel _0.

When TXON_0 = “0” then TTIP_0 and TRING_0 driver outputs will be tri-stated.

In Host mode

The TXON_n bits in the channel control registers turn each channel Transmit and

Receive section ON or OFF. However, control of the on/off function can be transferred

to the Hardware pins by setting the TXONCNTL bit (bit 7) to “1” in the register at

address hex 0x82.

Transmitter Turn On for Channel _1

Transmitter Turn On for Channel _2

Transmitter Turn On for Channel _3

Transmitter Turn On for Channel _4

Transmitter Turn On for Channel _5

Transmitter Turn On for Channel _6

Transmitter Turn On for Channel _7

NOTE: Internally pulled “Low” with a 50kΩ resistor for all channels.

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