S i 5 3 2 4
18
Preliminary Rev. 0.3
47
N32[15:8]
48
N32[7:0]
55
CLKIN2RATE[2:0]
CLKIN1RATE[2:0]
128
CK2_ACTV_REG CK1_ACTV_REG
129
LOS2_INT
LOS1_INT
LOSX_INT
130
DIGHOLD-
VALID
FOS2_INT
FOS1_INT
LOL_INT
131
LOS2_FLG
LOS1_FLG
LOSX_FLG
132
FOS2_FLG
FOS1_FLG
LOL_FLG
134
PARTNUM_RO[11:4]
135
PARTNUM_RO[3:0]
REVID_RO[3:0]
136
RST_REG
ICAL
137
FASTLOCK
138
LOS2_EN [1:1]
LOS1_EN [1:1]
139
LOS2_EN[0:0] LOS1_EN[0:0]
FOS2_EN
FOS1_EN
142
INDEPENDENTSKEW1[7:0]
143
INDEPENDENTSKEW2[7:0]
185
NVM_REVID[7:0]
Table 3. CKOUT_ALWAYS_ON and SQ_ICAL Truth Table
CKOUT_ALWAYS_ON
SQ_ICAL
Results
0
0
CKOUT OFF until after the first ICAL
0
1
CKOUT OFF until after the first successful
ICAL (i.e., when LOL is low)
1
0
CKOUT always ON, including during an ICAL
1
1
CKOUT always ON, including during an ICAL.
Use these settings to preserve output-to-output
skew
Register
D7
D6
D5
D4
D3
D2
D1
D0