XRT72L13 datasheet(166/370 Pages) EXAR

166 / 370 page

XRT72L13

MULTIPLEXER/FRAMER IC

áç

PRELIMINARY

REV. 1.0.6

154

This “Reset-upon-Read” bit-field indicates whether

the “DS1 Channel 18 Loop-back Request” interrupt

has occurred or not.

This bit-field will be set to “1” if the “DS1 Channel 18

Loop-back Request Interrupt” has occurred since the

last read of this register.

This bit-field will be set to “0” if the “DS1 Channel 18

Loop-back Request” interrupt has NOT occurred

since the last read of this register.

Bit 5 - DS1 Channel 17 Loop-back Request Inter-

rupt Status

This “Reset-upon-Read” bit-field indicates whether

the “DS1 Channel 17 Loop-back Request” interrupt

has occurred or not.

This bit-field will be set to “1” if the “DS1 Channel 17

Loop-back Request Interrupt” has occurred since the

last read of this register.

This bit-field will be set to “0” if the “DS1 Channel 17

Loop-back Request” interrupt has NOT occurred

since the last read of this register.

Bit 4 - DS1 Channel 16 Loop-back Request Inter-

rupt Status

This “Reset-upon-Read” bit-field indicates whether

the “DS1 Channel 16 Loop-back Request” interrupt

has occurred or not.

This bit-field will be set to “1” if the “DS1 Channel 16

Loop-back Request Interrupt” has occurred since the

last read of this register.

This bit-field will be set to “0” if the “DS1 Channel 16

Loop-back Request” interrupt has NOT occurred

since the last read of this register.

Bit 3 - DS1 Channel 19 Loop-back Request Inter-

rupt Enable

This “Read/Write” bit-field permits the user to enable

or disable the “DS1 Channel 19 Loop-back Request”

Interrupt.

Setting this bit to “0” disables this interrupt. Con-

versely, setting this bit to “1” enables this interrupt.

Bit 2 - DS1 Channel 18 Loop-back Request Inter-

rupt Enable

This “Read/Write” bit-field permits the user to enable

or disable the “DS1 Channel 18 Loop-back Request”

Interrupt.

Setting this bit to “0” disables this interrupt. Con-

versely, setting this bit to “1” enables this interrupt.

Bit 1 - DS1 Channel 17 Loop-back Request Inter-

rupt Enable

This “Read/Write” bit-field permits the user to enable

or disable the “DS1 Channel 17 Loop-back Request”

Interrupt.

Setting this bit to “0” disables this interrupt. Con-

versely, setting this bit to “1” enables this interrupt.

Bit 0 - DS1 Channel 16 Loop-back Request Inter-

rupt Enable

This “Read/Write” bit-field permits the user to enable

or disable the “DS1 Channel 16 Loop-back Request”

Interrupt.

Setting this bit to “0” disables this interrupt. Con-

versely, setting this bit to “1” enables this interrupt.

2.3.2.108 M12 DS2 # 5 LoopbackStatus Register

Bit 3 - DS1 Channel # 19 Loop-back Status

This “Read-Only” bit-field indicates whether or not a

loop-back request has been detected for DS1 Chan-

nel # 19.

This bit-field will be set to “1” if a loop-back request

has been detected for DS1 Channel # 19. Converse-

ly, this bit-field will be set to “0” if a loop-back request

has NOT been detected for DS1 Channel # 19.

NOTE: This bit-field is invalid if the XRT72L13 M13 device

is operating in the “ITU-T G.747” Mode.

Bit 2 - DS1 Channel # 18 Loop-back Status

This “Read-Only” bit-field indicates whether or not a

loop-back request has been detected for DS1 Chan-

nel # 18.

This bit-field will be set to “1” if a loop-back request

has been detected for DS1 Channel # 18. Converse-

M12 DS2 # 1 LOOP-BACK STATUS REGISTER (ADDRESS = 0X9C)

BIT 7BIT 6BIT 5BIT 4BIT 3BIT 2BIT 1BIT 0

Unused

DS1

Channel # 19

Loopback

Status

DS1

Channel # 18

Loopback

Status

DS1

Channel # 17

Loopback

Status

DS1

Channel # 16

Loopback

Status

R/O

/RO

R/O

000

XRT72L13 Datasheet(PDF) 166 Page - Exar Corporation

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