ZL50022
Data Sheet
External Read/Write Address: 006AH
Reset Value: 0000H
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R3
R3
R3
ML
R3
R2
R2
R2
ML
R2
R1
R1
R1
ML
R1
R0
R0
R0
ML
R0
MML
MMU
MU
MML
MMU
MU
MML
MMU
MU
MML
MMU
MU
Bit
Name
Description
0
R0MU
Reference 0 Single-period Upper Limit Mask Bit
When this bit is high, it masks the single-period upper limit check (or forces pass) for
REF0.
Table 42 - Reference Mask Register (RMR) Bits (continued)
External Read Only Address: 006BH
15
0
14
0
13
0
12
0
11
10
9
8
7
6
5
4
3
2
1
0
R3FS
2
R3FS
1
R3FS
0
R2FS
2
R2FS
1
R2FS
0
R1FS
2
R1FS
1
R1FS
0
R0FS
2
R0FS
1
R0FS
0
Bit
Name
Description
Reserved. In normal functional mode, these bits are zero.
15 - 12
11 - 9
Unused
R3FS2 - 0 Reference 3 Frequency Status Bits
These bits report detected frequency of REF3.
R3FS2
R3FS1
R3FS0
REF3 Frequency Measurement
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
8 kHz
1.544 MHz
2.048 MHz
4.096 MHz
8.192 MHz
16.384 MHz
19.44 MHz
Reserved
Table 43 - Reference Frequency Status Register (RFSR) Bits - Read only
77
Zarlink Semiconductor Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
