DS26518GN+ Maxim Integrated Products, DS26518GN+ Datasheet - Page 241
DS26518GN+
Manufacturer Part Number
DS26518GN+
Description
IC TXRX T1/E1/J1 8PORT 256-CSBGA
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Specifications of DS26518GN+
Number Of Drivers/receivers
8/8
Protocol
T1/E1/J1
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
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Register Name:
Register Description:
Register Addresses:
Bit #
Name
Default
Bit 6: Receive Hitless Protection Mode (RHPM)
If the TXENABLE pin is low and this bit is set to one, the receive LIU will present a high impedance to the line,
overriding the receive impedance selection register bits LRISMR.RIMPM[2:0].
Bits 5 and 4 : Jitter Attenuator Depth Select (JADS[1:0])
Bits 3 and 2: Jitter Attenuator Position Select (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 Selection Criteria (LSC). This bit is used for LIU LOS selection criteria.
JADS1
JAPS1
0
0
1
1
0
0
1
1
0 = Normal operation using software for hitless protection (RIMPON).
1 = Hitless protection switching mode using TXENABLE pin.
0 = E1
1 = T1 or J1
E1 Mode
0 = G.775
1 = ETS 300 233
T1/J1 Mode
0 = T1.231
1 = T1.231
JADS0
JAPS0
—
7
0
0
1
0
1
0
1
0
1
Jitter attenuator FIFO depth 128 bits.
Jitter attenuator FIFO depth 64 bits.
Jitter attenuator FIFO depth 32 bits.
Jitter attenuator FIFO depth 16 bits (used for delay-sensitive applications).
Jitter attenuator in the receive path.
Jitter attenuator in the transmit path.
Jitter attenuator disabled.
Jitter attenuator disabled.
LTRCR
LIU Transmit Receive Control Register
1000h + (20h x (n - 1)) : where n = 1 to 8
RHPM
6
0
FUNCTION
JADS1
5
0
241 of 312
JADS0
0
4
FUNCTION
JAPS1
3
0
JAPS0
2
0
T1J1E1S
1
0
LSC
0
0
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