zl50031 Zarlink Semiconductor, zl50031 Datasheet - Page 50

• Manufacturer Part Number: zl50031
• Description: Flexible 4 K X 2 K Channel Digital Switch With H.110 Interface And 2 K X 2 K Local Switch
• Manufacturer: Zarlink Semiconductor

15 - 9
15 - 7
8 - 3
2 - 0
2 - 0
15
POS
Bit
Bit
Read/Write Address: 002D
Reset Value: 0000
0
Read/Write Address: 002E
Reset Value: 0000
15
6
5
4
3
6
14
0
POS
14
5
State 2-0
Unused
Name
POS6 - 0
SKC2 - 0
CKM
Limit
SLS
PLS
Unused
Name
13
0
POS
13
4
H
12
H
0
POS
12
Reserved. In normal functional mode, these bits MUST be set to zero.
Secondary Loss Detection Bit (Read-only bit): When the secondary reference fails,
this bit is set to high.
Primary Loss Detection Bit (Read-only bit): When the primary reference fails, this bit
is set to high.
DPLL Output Clock Bit: When high, the primary output C32/64o is 65.536 MHz clock.
When low, the primary output C32/64o is 32.768 MHz clock. This is the only writable bit
in this register.
Limit (Read-only bit): Indicates that DPLL Phase Slope Limiter limits input phase.
State: These 3 bits indicate the state of the DPLL State Machine. Please refer to Figure
7, "State Machine Diagram" on page 25.
3
Table 22 - DPLL Output Adjustment (DPOA) Register Bits
H
Table 23 - DPLL House Keeping (DHKR) Register Bits
11
Phase Offset Bits: These seven bits refer to the 2’s complement phase word to
control the DPLL output phase offset. The offset varies in steps of 15 ns if the
reference is 8 kHz or 2.048 MHz. The offset varies in steps of 20 ns if the reference
is 1.544 MHz.
Reserved. In normal functional mode, these bits MUST be set to zero.
Skew Control Bits: These three bits control the delay of the DPLL outputs from 0
to 7 steps in delay intervals of 3.5 ns.
0
H
POS
11
2
for DHKR Register
10
0
POS
10
1
9
0
POS
Zarlink Semiconductor Inc.
9
0
8
0
ZL50031
State 2-0
8
0
000
001
010
011
100
101
110
111
7
0
50
7
0
SLS
6
Description
Description
PLS
6
0
5
HOLDOVER_SEC
HOLDOVER_PRI
NORMAL_SEC
NORMAL_PRI
State Name
MTIE_SEC
MTIE_PRI
CKM
5
0
Reserved
Reserved
4
4
0
Limit
3
3
0
State2
2
SKC2
2
State1
1
SKC1
Data Sheet
1
State0
SKC0
0
0