PM7384 datasheet(91/358 Pages) PMC

91 / 358 page

PM7384 FREEDM-84P672

DATA SHEET

PMC-1990445

ISSUE 5

FRAME ENGINE AND DATA LINK MANAGER 84P672

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

rate at which data is output by the TCAS672 and the rate at which it is

transmitted on the SBI ADD BUS.

The SBI Insert block may be configured to enable or disable transmission of

individual triburaries on to the SBI ADD bus. Individual triburaries may also be

configured to operate in framed or unframed mode.

9.12 Performance Monitor

The Performance Monitor block (PMON) contains four counters. The first two

accumulate receive partial packet buffer FIFO overrun events and transmit partial

packet buffer FIFO underflow events, respectively. The remaining two counters

are software programmable to accumulate a variety of events, such as receive

packet count, FCS error counts, etc. All counters saturate upon reaching

maximum value. The accumulation logic consists of a counter and holding

Writing to the FREEDM-84P672 Master Clock / Frame Pulse Activity Monitor and

Accumulation Trigger register transfer the count to the corresponding holding

via the PCI interface.

9.13 JTAG Test Access Port Interface

The JTAG Test Access Port block provides JTAG support for boundary scan. The

standard JTAG EXTEST, SAMPLE, BYPASS, IDCODE and STCTEST instructions

are supported. The FREEDM-84P672 identification code is 073840CD

hexadecimal.

9.14 PCI Host Interface

The FREEDM-84P672 supports two different normal mode register types as

defined below:

1. PCI Host Accessible registers (PA) – these registers can be accessed

through the PCI Host interface.

2. PCI Configuration registers (PC) – these register can only be accessed

through the PCI Host interface during a PCI configuration cycle.

The PCI registers are addressable on dword boundaries only. The PCI offset

shown in the table below must be combined with a base address to form the PCI

Interface address. The base address can be found in the FREEDM-84P672

Memory Base Address register in the PCI Configuration memory space.

PM7384 Datasheet(PDF) 91 Page - PMC-Sierra, Inc