PM7344 datasheet(54/293 Pages) PMC

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PM7344 S/UNI-MPH

DATA SHEET

PMC-950449

ISSUE 6

MULTI-PHY USER NETWORK INTERFACE

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

Pin Name

Type

No.

Function

VSS_DC[3]

VSS_DC[2]

VSS_DC[1]

VSS_DC[0]

Ground

115

DC Ground (VSS_DC[3:0]). These pins should

be connected to GND in common with

VSS_AC[2:0].

Notes on Pin Description:

1. VDD_DC[3:0] and VSS_DC[3:0] are the +5 V and ground connections,

respectively, for the core circuitry and the DC drive of the output pads of the

device. VDD_AC[2:0] and VSS_AC[2:0] are the +5 V and ground

connections, respectively, for the AC switching of the pad ring circuitry of the

device. These power supply connections must all be utilized and must all

connect to a common +5 V or ground rail, as appropriate. There is no low

impedance connection within the S/UNI-MPH between the core, and pad ring

supply rails. Failure to properly make these connections may result in

improper operation or damage to the device.

2. Inputs RSTB, TMS, TDI, TRSTB and ALE have integral pull-up resistors.

3. The TDLSIG/TDLINT[4:1] pins have integral pull-up resistors and default to

being inputs after a reset.

4. D[7:0], TCLKO[4:1], RCLKO, RDAT[7:0], RCA[4:1], RXPRTY, RSOC,

TCA[4:1], and the TCAMPH and RCAMPH bidirectionals have 4mA drive

capability. All other outputs and bidirectionals have 2mA drive capability.

5. All inputs and bidirectionals present minimum capacitive loading and operate

at TTL logic levels.

6. When an internal RFDL is enabled, the RDLINT[x] output goes high:

1) when the number of bytes specified in the RFDL Interrupt Status/Control

2) immediately on detection of RFDL FIFO buffer overrun,

3) immediately on detection of end of message,

4) immediately on detection of an abort condition, or,

5) immediately on detection of the transition from receiving all ones to flags.

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