PM3350-SW datasheet(162/224 Pages) PMC

162 / 224 page

ELAN 8X10

PM3350 ELAN 8 X10

DATA SHEET

PMC-970109

ISSUE 3

8 PORT ETHERNET SWITCH

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND PMC-SIERRA, INC. CUSTOMERS ONLY

160

ACOUNT7

0xFFFF3C

Channel 7 Acknowledge Counter Register

Local Memory Access

The external local memory is completely visible to the PCI interface. Direct memory

access is provided to allow reads and writes to frame data, switching data structures,

and configuration information. Note that the uppermost 64 Kbytes of the local memory

space is not visible, as it is used for access to internal device registers.

Device Control/Status Registers

Bit

Type

Function

Default

Bit 31 to 12

Unused

Bit 11 to 7

HSTATE[4:0]

Bit 6

Unused

Bit 5

RINT

Bit 4

EXTI

Bit 3

RHALT

Bit 2

BKPT

Bit 1

MERR

Bit 0

MPERR

HSTATE:

Internal host interface state: for factory test purposes only

RINT:

Flags assertion of interrupt to host from Switch Processor

EXTI:

Signals assertion of external interrupt input (MINTR_ pin)

RHALT:

Switch Processor halt status

BKPT:

Switch Processor breakpoint status

MERR:

PCI bus master catastrophic error status

MPERR:

PCI bus master parity error detect

PM3350-SW Datasheet(PDF) 162 Page - PMC-Sierra, Inc

PM3350-SW Datasheet(HTML) 162 Page - PMC-Sierra, Inc

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