PM7375-SC datasheet(220/430 Pages) PMC

220 / 430 page

PM7375 LASAR-155

DATA SHEET

PMC-931127

ISSUE 6

LOCAL ATM SAR & PHYSICAL LAYER

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

204

10.1.95

Bit

Type

Function

Default

Bit 15

Unused

Bit 14

Unused

Bit 13

Unused

Bit 12

Unused

Bit 11

Unused

Bit 10

R/W

CINSR_CNT[2]

Bit 9

R/W

CINSR_CNT[1]

Bit 8

R/W

CINSR_CNT[0]

Bit 7

R/W

CINB_CAP[7]

Bit 6

R/W

CINB_CAP[6]

Bit 5

R/W

CINB_CAP[5]

Bit 4

R/W

CINB_CAP[4]

Bit 3

R/W

CINB_CAP[3]

Bit 2

R/W

CINB_CAP[2]

Bit 1

R/W

CINB_CAP[1]

Bit 0

R/W

CINB_CAP[0]

Note, when the TALP Multipurpose Port Bucket Capacity register is being modified,

the CIN_PR_EN bit located in the TALP Control register, should be set to zero.

CINB_CAP[7:0]:

The CINB_CAP[7:0] bits define the size of the multipurpose port token bucket.

Tokens are added to the bucket at the sustainable cell rate as determined by the

CINSR_CNT[2:0] field. Tokens are consumed at the peak cell rate as determined

by the TALP Multipurpose Port Peak Cell Rate register. As controlled by the

CIN_PR_EN bit in the TALP Control register, cell transmission is only allowed

when the multipurpose port token bucket contains tokens. If the bucket is empty,

transmission proceeds at the bucket fill rate (i.e. sustainable cell rate).

CINSR_CNT[2:0]:

The CINSR_CNT[2:0] bits are used to select the sustainable cell rate based on a

derivative of the peak cell rate. CINSR_CNT[2:0] is the roll over value of the

multipurpose port sustainable rate counter which is clocked using the

multipurpose port peak cell rate counter. For example, given a multipurpose port

peak cell rate of 10 Mbit/s, to obtain a multipurpose port cell rate of 5 Mbit/s, the

CINSR_CNT[2:0] field should be set to 001B.

PM7375-SC Datasheet(PDF) 220 Page - PMC-Sierra, Inc

PM7375-SC Datasheet(HTML) 220 Page - PMC-Sierra, Inc

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