STC5423 Datasheet, PDF (41/60 Pages) Connor-Winfield Corporation – Synchronous Clock for SETS

Bit 3 ~ Bit 0
13
14 ~15
Manual_Select_Ref, 0x23 (R/W)
STC5423
Synchronous Clock for SETS
Data sheet
Selection
Holdover
Reserved
Address
Bit7
Bit6
Bit5
Bit4
0x23
Not used
Selects the reference in manual reference selection mode.
Bit3
Bit2
Bit1
Bit0
Manually selected reference
Bit 3 ~ Bit 0
0
1
2
3~12
13
14
15
Selection
Freerun
Sync with Ref 1
Sync with Ref 2
Reserved
Holdover
Pseudo-Holdover
Reserved (for T0); Lock to T0 (for T4)
The register is read only in hard-wired manual switch mode. It indicates the current reference defined by pin
SRCSW and the register Hard_Wired_Switch_Pre_Selection.
Default value: 0
Selected_Ref, 0x24 (R)
Address
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0x24
Not used
Current selected reference
Indicates the current selected reference.
Field Value
0
1
2
3~12
13
14
15
Device_Holdover_History, 0x25 (R)
Current selected reference
Freerun
Sync with Ref 1
Sync with Ref 2
Reserved
Holdover
Pseudo-Holdover
Reserved (for T0); Lock to T0 (for T4)
Address
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0x25
Bits 0 - 7 of 32 bit Holdover History
0x26
0x27
Bits 8 - 15 of 32 bit Holdover History
Bits 16 - 23 of 32 bit Holdover History
Page 41 of 60 TM114
Rev:1.4
© Copyright the Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Date: October 24, 2011