PM4354-PI datasheet(92/463 Pages) PMC

92 / 463 page

RELEASED

PM4354 COMET-QUAD

DATASHEET

PMC-1990315

ISSUE 6

FOUR CHANNEL COMBINED E1/T1/J1

TRANSCEIVER / FRAMER

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC. AND FOR ITS CUSTOMERS’ INTERNAL USE

Bit

Type

Function

Default

Bit 7

R/W

PIO_OE

Bit 6

R/W

PIO

Bit 5

R/W

IBCD_IDLE

Bit 4

R/W

RSYNC_ALOSB

Bit 3

R/W

OOSMFAIS

Bit 2

R/W

TRKEN

Bit 1

R/W

RXMTKC

Bit 0

R/W

E1/T1B

PIO_OE:

The programmable I/O output enable, PIO_OE, bit controls the PIO pin. When PIO_OE is

logic 1, the PIO pin is configured as an output and driven by the COMET-QUAD. When

PIO_OE is logic 0, the PIO pin is configured as an input. Upon reset, the PIO pin is

configured as an input.

PIO_OE is only defined for Register 000H. In Registers 100H, 200H, and 300H the bit is

unused, and the Default value is ‘X’.

PIO:

The programmable I/O, PIO, bit controls/reflects the state of the PIO pin. When the PIO pin is

configured as an output, the PIO bit controls the state of the PIO pin. When the PIO pin is

configured as an input, the PIO bit reflects the state of the PIO pin. Upon reset, the PIO pin is

an input.

PIO is only defined for Register 000H. In Registers 100H, 200H, and 300H the bit is unused,

and the Default value is ‘X’.

OOSMFAIS:

In E1 mode, this bit controls the quadrant receive backplane signaling trunk conditioning in an

out of signaling multiframe condition. If OOSMFAIS is set to a logic 0, an OOSMF indication

from the E1-FRMR does not affect the BRSIG[x] or CASBRD output of the quadrant. When

OOSMFAIS is a logic 1, an OOSMF indication from the E1-FRMR will cause the BRSIG[x] or

CASBRD output of the quadrant to be set to all 1's.

RSYNC_ALOSB:

The RSYNC_ALOSB bit controls the source of the loss of signal condition used to control the

behaviour of the receive reference presented on the RSYNC. If RSYNC_ALOSB is a logic 0,

analog loss of signal is used. If RSYNC_ALOSB is a logic 1, digital loss of signal is used.

PM4354-PI Datasheet(PDF) 92 Page - PMC-Sierra, Inc

PM4354-PI Datasheet(HTML) 92 Page - PMC-Sierra, Inc

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