XRT86VL34_2 Datasheet, PDF(111/156 Page) Exar Corporation – QUAD T1/E1/J1 FRAMER/LIU COMBO

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XRT86VL34_2 Datasheet, PDF (111/156 Pages) Exar Corporation – QUAD T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION

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REV. V1.2.0

XRT86VL34

QUAD T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION

TABLE 87: SLIP BUFFER INTERRUPT ENABLE REGISTER (SBIER)

HEX ADDRESS: 0XnB09

BIT

FUNCTION

TYPE DEFAULT

DESCRIPTION-OPERATION

7 TxFULL_ENB

R/W

Transmit Slip Buffer Full Interrupt Enable

This bit enables or disables the Transmit Slip Buffer Full interrupt

within the XRT86VL34 device. Once this interrupt is enabled, the

transmit Slip Buffer Full interrupt is declared when the transmit slip

buffer is filled. If the transmit slip buffer is full and a WRITE opera-

tion occurs, then a full frame of data will be deleted, and the interrupt

status bit will be set to â1â.

0 - Disables the Transmit Slip Buffer Full interrupt when the Transmit

Slip Buffer fills

1 - Enables the Transmit Slip Buffer Full interrupt when the Transmit

Slip Buffer fills.

6 TxEMPT_ENB

R/W

Transmit Slip Buffer Empty Interrupt Enable

This bit enables or disables the Transmit Slip Buffer Empty interrupt

within the XRT86VL34 device. Once this interrupt is enabled, the

transmit Slip Buffer Empty interrupt is declared when the transmit

slip buffer is emptied. If the transmit slip buffer is emptied and a

READ operation occurs, then a full frame of data will be repeated,

and the interrupt status bit will be set to â1â.

0 - Disables the Transmit Slip Buffer Empty interrupt when the

Transmit Slip Buffer empties

1 - Enables the Transmit Slip Buffer Empty interrupt when the Trans-

mit Slip Buffer empties.

5 TxSLIP_ENB

R/W

Transmit Slip Buffer Slips Interrupt Enable

This bit enables or disables the Transmit Slip Buffer Slips interrupt

within the XRT86VL34 device. Once this interrupt is enabled, the

transmit Slip Buffer Slips interrupt is declared when either the trans-

mit slip buffer is filled or emptied. If the transmit slip buffer is emptied

and a READ operation occurs, then a full frame of data will be

repeated, and the interrupt status bit will be set to â1â.

The interrupt status bit will be set to â1â in either one of these two

conditions:

1. If the transmit slip buffer is emptied and a READ operation

occurs, then a full frame of data will be repeated, and this

interrupt bit will be set to â1â.

2. If the transmit slip buffer is full and a WRITE operation occurs,

then a full frame of data will be deleted, and this interrupt bit

will be set to â1â.

0 - Disables the Transmit Slip Buffer Slips interrupt when the Trans-

mit Slip Buffer empties or fills

1 - Enables the Transmit Slip Buffer Slips interrupt when the Trans-

mit Slip Buffer empties or fills.

4-3 Reserved

Reserved

106

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