DS26518GN+ Maxim Integrated Products, DS26518GN+ Datasheet - Page 138
![IC TXRX T1/E1/J1 8PORT 256-CSBGA](/photos/6/50/65053/256-csbga_21-0315_sml.jpg)
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 Address:
Bit #
Name
Default
Bit 7: Receive BOC Reset (RBR). The host should set this bit to force a reset of the BOC circuitry. Note that this is
an acknowledged reset—that is, the host needs only to set the bit and the DS26518 will clear it once the reset
operation is complete (less than 250Ps). Modifications to the RBF[1:0] and RBD[1:0] bits will not be applied to the
BOC controller until a BOC reset has been completed.
Bits 5 and 4: Receive BOC Disintegration Bits (RBD[1:0]). The BOC disintegration filter sets the number of
message bits that must be received without a valid BOC to set the BC bit indicating that a valid BOC is no longer
being received.
Bits 2 and 1: Receive BOC Filter Bits (RBF[1:0). The BOC filter sets the number of consecutive patterns that
must be received without error prior to an indication of a valid message.
Note 1: The DS26518’s BOC controller does not integrate and disintegrate concurrently. Therefore, if the maximum integration
time and the maximum disintegration time are used together, BOC messages that repeat fewer than 11 times may not be
detected.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 7 to 0: Per-Channel Idle Code Bits (C[7:0]). C0 is the LSB of the code (this bit is transmitted last). Address
20h is for channel 1. Address 37h is for channel 24. Address 3Fh is for channel 32. RIDR25–RIDR32 are E1 mode
only.
RBD1
RBF1
0
0
1
1
0
0
1
1
RBR
C7
RBD0
7
0
RBF0
7
0
0
1
0
1
0
1
0
1
T1RBOCC (T1 Mode Only)
Receive BOC Control Register
015h + (200h x (n - 1)) : where n = 1 to 8
RIDR1 to RIDR32
Receive Idle Code Definition Registers 1 to 32
020h to 03Fh + (200h x (n - 1)) : where n = 1 to 8
VALID SEQUENCE IDENTIFICATION
FOR BOC CLEAR IDENTIFICATION
CONSECUTIVE BOC CODES FOR
—
C6
6
0
CONSECUTIVE MESSAGE BITS
6
0
64 (See Note 1)
7 (See Note 1)
RBD1
C5
5
0
5
0
None
16
32
48
3
5
138 of 286
RBD0
C4
4
0
4
0
—
C3
3
0
3
0
DS26518 8-Port T1/E1/J1 Transceiver
RBF1
2
0
C2
2
0
RBF0
1
0
C1
1
0
—
0
0
C0
0
0
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