DS26334G+ Maxim Integrated Products, DS26334G+ Datasheet - Page 69

• Manufacturer Part Number: DS26334G+
• Description: IC INTERFACE LINE 16CH 256-CSBGA
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS26334G+

• Number Of Drivers/receivers: 16/16
• Protocol: IEEE 1149.1
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 256-CSBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 7 and 6: PLL Clock Input [1:0] (PCLKI[1:0]). These bits select the input into to the PLL.
Bit 5: T1/E1 Clock Enable (TECLKE). When this bit is set the TECLK output is enabled. If not set TECLK will be
disabled and the TECLK output is a LOS output. TECLK requires PLLE to be set for correct functionality.
Bit 4: Clock A Enable (CLKAE). When this bit is set the CLKA output is enabled. If not set CLKA will be disabled
and the CLKA output is a LOS output. CLKA requires PLLE to be set for correct functionality.
Bits 3 and 2: Master Period Select [1:0] (MPS[1:0]). These bits MPS[1:0] selects the external MCLK frequency
for the DS26334. See
Channels 9 to 16.
Bit 1: Frequency Select (FREQS). In conjunction with MPS[1:0] selects the external MCLK frequency for the
DS26334. If this bit is set the external Master clock can be 1.544MHz or multiple thereof. If not set the external
master clock can be 2.048MHz or multiple thereof. See
controller functionality of Channels 9 to 16.
Bit 0: Phase Lock Loop Enable (PLLE). When this bit is set the phase lock loop is enabled. If not set MCLK will
be the applied input clock.
Table 6-15. DS26334 MCLK Selections
PLLE
0
0
1
1
1
1
1
1
1
1
PCLKI1
MPS1, MPS0
7
0
10: RCLK9 to 16 is used based on the selection in register CCR.
00: MCLK is used.
01: RCLK1 to 8 is used based on the selection in register
11: Reserved.
xx
xx
00
01
10
11
00
01
10
11
Table 6-15
PCLKI0
6
0
MHz ±50ppm
MC
Master Clock Select Register
06h
MCLK,
12.352
16.384
1.544
2.048
1.544
3.088
6.176
2.048
4.096
8.192
for details. This register when written to will also controller functionality of
TECLKE
DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit
5
0
FREQS
CLKAE
69 of 121
x
x
1
1
1
1
0
0
0
0
4
0
Table 6-15
MPS1
T1/J1 or E1
T1/J1 or E1
T1/J1 or E1
T1/J1 or E1
T1/J1 or E1
T1/J1 or E1
T1/J1 or E1
T1/J1 or E1
for details. This register when written to will also
3
0
MODE
T1
E1
CCR.
MPS0
2
0
FREQS
1
0
PLLE
0
0