Addressing—MPCBL0010 SBC

SSC1: Special Serial Connection bit 1

SSC1/SSC0:

01:Float the FW_RXD pin -- use this to program the FWUM

10:Connect FW_RXD and FW_TXD to an RJ-45 RS-232 port

00:Connect B1 to ICH UART1

PCB: PCB version.

These bits define special connections between serial devices that are meaningless under normal operation. They are for development and/or manufacturing facilities. Leave these bits in their default state for normal operation.

Table 74.

Telecom Clock Register 0 0A08h

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Address

Action

D7

D6

D5

D4

D3

D2

D1

D0

 

 

 

 

 

 

 

 

 

 

 

 

 

Read

HWMODE

HO_LOS

MS2

MS1

REFALIGN

FCS

E3DS3

E3DS30C3

 

 

 

 

 

 

 

 

 

 

 

 

0xA08

Write

HWMODE

HO_LOS

MS2

MS1

REFALIGN

FCS

E3DS3

E3DS30C3

 

 

 

 

 

 

 

 

 

 

 

 

 

Reset

0

0

0

0

0

0

0

0

 

 

 

 

 

 

 

 

 

 

 

HWMODE: Enables automatic switching by hardware

HO_LOS: Switch criteria in hardware (HW) mode.When set, use PLL holdover detection as the switch criteria.When cleared, use loss of clock (internal to PLD) as the switch criteria.

MS2/MS1: PLL Mode selection:

MS[2..1] = 00: Normal operation

MS[2..1] = 01: Holdover mode

MS[2..1] = 10: Free-run mode

MS[2..1] = 11: Reserved

REFALIGN: Reference clock phase alignment; changing this bit from 0 to 1 starts the alignment.

FCS: Filter characteristics of the PLL:

0:12 Hz filter without phase slope limitation

1:6 Hz filter with phase slope limited to 41 ns per 1.326 ms.

E3DS3/E3DS3OC3: These bits select the transmission clock frequency when TXREFx_SEL[2..0]=111 in telecom clock register 3.

E3DS3OC3 = 0, E3DS3 = 1: 8.592 MHz

E3DS3OC3 = 0, E3DS3 = 0: 11.184 MHz

E3DS3OC3 = 1, E3DS3 = 1: 34.368 MHz

E3DS3OC3 = 1, E3DS3 = 0: 44.736 MHz

 

Intel NetStructure® MPCBL0010 Single Board Computer

October 2006

Technical Product Specification

Order Number: 304120

99

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Intel MPCBL0010 manual Telecom Clock Register 0 0A08h, Hwmode Holos MS2 MS1 Refalign FCS E3DS3