ds3102 Maxim Integrated Products, Inc., ds3102 Datasheet - Page 93

• Manufacturer Part Number: ds3102
• Description: Stratum 3 Timing Card Ic With Synchronous Ethernet Support
• Manufacturer: Maxim Integrated Products, Inc.

Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 4: T4 or T0 Path Select (T4T0). This bit specifies which path is being accessed when reads or writes are made
to the following registers: PTAB1, PTAB2, FREQ1, FREQ2, FREQ3, IPR1, IPR2, IPR3, IPR4, IPR5, PHASE1, and
PHASE2.
Bits 3 to 0: Frequency Measurement Input Select (FMEASIN[3:0]). This field specifies the input clock for the
frequency measurement reported in the
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 7 to 0: Measured Frequency (FMEAS[7:0]). This read-only field indicates the measured frequency of the
input clock specified in the FMEASIN field of the
that expresses the frequency as an offset with respect to the frequency monitor clock (either the internal master
clock or the output of the T0 DPLL, depending on the setting of the FMONCLK bit in the
measured frequency is FMEAS[7:0] × 3.81ppm. See Section 7.5.1.
Rev: 012108
____________________________________________________________________________________________ DS3102
0 = T0 path
1 = T4 path
0000 = {unused value, undefined}
0001 = {unused value, undefined}
0010 = {unused value, undefined}
0011 = IC3
0100 = IC4
0101 = IC5
0110 = IC6
0111 = {unused value, undefined}
1000 = IC8
1001 = IC9
1010–1111 = {unused value, undefined}
7
0
—
7
0
—
6
0
6
0
MCR11
Master Configuration Register 11
4Bh
FMEAS
Frequency Measurement Register
4Ch
FMEAS
—
5
0
5
0
register. See Section 7.5.1.
MCR11
T4T0
4
0
4
0
FMEAS[7:0]
register. FMEAS is a two’s-complement signed integer
3
0
3
0
FMEASIN[3:0]
2
0
2
0
MCR10
1
0
1
0
register). The
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0
0
0
0