ds3104-se Maxim Integrated Products, Inc., ds3104-se Datasheet - Page 79

• Manufacturer Part Number: ds3104-se
• Description: Line Card Timing Ic With Synchronous Ethernet Support
• Manufacturer: Maxim Integrated Products, Inc.

Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 7 to 6: Digital2 Frequency (DIG2F[1:0]). This field, MCR6:DIG2SS and MCR6:DIG2AF configure the
frequency of the Digital2 clock synthesizer.
Bits 5 to 4: Digital1 Frequency (DIG1F[1:0]). This field and MCR6:DIG1SS configure the frequency of the
Digital1 clock synthesizer.
Bit 1: Digital2 Source (DIG2SRC). This bit selects which DPLL the Digital 2 DFS is connected to. When
MCR4:LKT4T0 = 1 it is always connected to the T0 DPLL.
Bit 0: Digital1 Source (DIG1SRC). This bit selects which DPLL the Digital 1 DFS is connected to. When
MCR4:LKT4T0 = 1 it is always connected to the T0 DPLL.
________________________________________________________________________________________ DS3104-SE
DIG2SS = 1
00 = 1544kHz
01 = 3088kHz
10 = 6176kHz
11 = 1235 kHz
DIG1SS = 1
00 = 1544kHz
01 = 3088kHz
10 = 6176kHz
11 = 12352kHz
0 = the T0 DPLL
1 = the T4 DPLL
0 = the T0 DPLL
1 = the T4 DPLL
Bit 7
0
DIG2F[1:0]
DIG2AF = 0
DIG2SS = 0
00 = 2048kHz
01 = 4096kHz
10 = 8192kHz
11 = 16384kHz
DIG1SS = 0
00 = 2048kHz
01 = 4096kHz
10 = 8192kHz
11 = 16384kHz
Bit 6
0
MCR7
Master Configuration Register 7
39h
Bit 5
0
DIG1F[1:0]
DIG2SS = 1
00 = 19.44MHz
01 = 38.88MHz
10 = undefined
11 = undefined
Bit 4
0
DIG2AF = 1
Bit 3
—
DIG2SS = 0
00 = 6.312MHz
01 = undefined
10 = 10MHz
11 = undefined
1
Bit 2
—
0
DIG2SRC
Bit 1
0
DIG1SRC
Bit 0
0
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