ds26524 Maxim Integrated Products, Inc., ds26524 Datasheet - Page 216
ds26524
Manufacturer Part Number
ds26524
Description
Ds26524 Quad T1/e1/j1 Transceiver
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS26524.pdf
(273 pages)
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9.5
Table 9-14. LIU Register Set
Note: Reserved registers should only be written with all zeros.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 4: Jitter Attenuator Depth Select (JADS).
Bits 3 and 2: Jitter Attenuator Position Select 1 and 0 (JAPS[1:0]). These bits are used to select the position of
the jitter attenuator.
Bit 1: T1J1E1 Selection (T1J1E1S). This bit configures the LIU for E1 or T1/J1 operation.
Bit 0: LOS Criteria Selection (LCS). This bit is used for LIU LOS selection criteria.
1008h–101Fh
JAPS1
ADDRESS
0
0
1
1
1000h
1001h
1002h
1003h
1004h
1005h
1006h
1007h
LIU Register Definitions
0 = Jitter attenuator FIFO depth set to 128 bits.
1 = Jitter attenuator FIFO depth set to 32 bits. Use for delay-sensitive applications.
0 = E1
1 = T1 or J1
E1 Mode:
0 = G.775
1 = ETS 300 233
T1/J1 Mode:
0 = T1.231
1 = T1.231
JAPS0
—
7
0
0
1
0
1
LRISMR
LTITSR
LTRCR
LSIMR
NAME
LMCR
LRSR
LLSR
LRSL
—
Jitter attenuator is in the receive path.
Jitter attenuator is in the transmit path.
Jitter attenuator is not used.
Jitter attenuator is not used.
LTRCR
LIU Transmit Receive Control Register
1000h + (20h x n): where n = 0 to 3, for Ports 1 to 4
—
6
0
LIU Transmit Receive Control Register
LIU Transmit Impedance and Pulse Shape Selection Register
LIU Maintenance Control Register
LIU Real Status Register
LIU Status Interrupt Mask Register
LIU Latched Status Register
LIU Receive Signal Level Register
LIU Receive Impedance and Sensitivity Monitor Register
Reserved
FUNCTION
—
5
0
216 of 273
JADS
0
4
DESCRIPTION
JAPS1
3
0
JAPS0
2
0
T1J1E1S
1
0
LSC
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
—
R
R
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