4.2.17 Register 42
7
0
EXT_GAP
EXT_GAP
Gap Bytes
R/W [7:0]
This value indicates the number of gap bytes applied to
the TS input. These are NCO-related register fields; they
are used only in PLL Mode 2. The reset value is
0b0100 0110.
4.2.18 Register 43
7
0
THRESHOLD
THRESHOLD FIFO Measurement Threshold
R/W [7:0]
This value sets the threshold for the virtual FIFO
measurement, which is used as the initial value for the
autoacquisition. These are NCO-related register fields;
they are used only in PLL Mode 2. The reset value is
0b0111 0011
Table 4.2 shows the reset values for all register fields.
Table 4.2
Reset Values for Register Fields
Bit7
0
Bit6
0
Bit5
0
Bit4
0
Bit3
0
Bit2
0
Bit1
0
Bit0
0
A
0
0
1
0
0
1
1
0
1
1
0
1
1
0
0
0
0
0
2
0
0
0
0
0
0
0
0
3
1
0
1
1
1
0
1
1
4
0
1
0
0
0
1
1
1
5
1
0
1
0
0
0
0
1
6
0
0
0
0
1
0
0
0
7
0
0
0
0
0
0
0
0
8
0
0
0
0
0
0
1
0
9
0
0
0
0
0
0
0
0
10
11
0
0
0
1
0
0
0
0
NCO-Related Registers
4-17
ETC [ ETC ]
