DS26518GN+ Maxim Integrated Products, DS26518GN+ Datasheet - Page 166
![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
Note: All bits in these register are latched. This register does not create interrupts. See
Bit 5: Change of Frame Alignment Event (COFA). Set when the last resync resulted in a change of frame or
multiframe alignment.
Bit 4: Eight Zero Detect Event (8ZD). Set when a string of at least eight consecutive zeros (regardless of the
length of the string) have been received at RRINGn and RTIPn.
Bit 3: Sixteen Zero Detect Event (16ZD). Set when a string of at least sixteen consecutive zeros (regardless of
the length of the string) have been received at RRINGn and RTIPn.
Bit 2: Severely Errored Framing Event (SEFE). Set when 2 out of 6 framing bits (Ft or FPS) are received in error.
Bit 1: B8ZS Codeword Detect Event (B8ZS). Set when a B8ZS codeword is detected at RRINGn and RTIPn
independent of whether the B8ZS mode is selected or not. Useful for automatically setting the line coding.
Bit 0: Frame Bit Error Event (FBE). Set when a Ft (D4) or FPS (ESF) framing bit is received in error.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Note: All bits in this register are latched. Bits 0 to 3 can cause interrupts. There is no associated real-time register. See
for T1 Mode.
Bit 6: CRC Resync Criteria Met Event (CRCRC). Set when 915:1000 codewords are received in error.
Bit 5: CAS Resync Criteria Met Event (CASRC). Set when 2 consecutive CAS MF alignment words are received
in error.
Bit 4: FAS Resync Criteria Met Event (FASRC). Set when 3 consecutive FAS words are received in error.
Bit 3: Receive Signaling All Ones Event (RSA1). Set when the contents of time slot 16 contains fewer than three
zeros over 16 consecutive frames. This alarm is not disabled in the CCS signaling mode.
Bit 2: Receive Signaling All Zeros Event (RSA0). Set when over a full MF, time slot 16 contains all zeros.
Bit 1: Receive CRC-4 Multiframe Event (RCMF). Set on CRC-4 multiframe boundaries; will continue to be set
every 2ms on an arbitrary boundary if CRC-4 is disabled.
Bit 0: Receive Align Frame Event (RAF). Set approximately every 250Ps to alert the host that Si and Sa bits are
available in the RAF and RNAF registers.
—-
—
7
0
7
0
RLS2 (T1 Mode)
Receive Latched Status Register 2
091h + (200h x (n - 1)) : where n = 1 to 8
RLS2 (E1 Mode)
E1 Receive Latched Status Register 2
091h + (200h x (n - 1)) : where n = 1 to 8
CRCRC
—
6
0
6
0
CASRC
COFA
5
0
5
0
FASRC
166 of 286
8ZD
4
0
4
0
RSA1
16ZD
3
0
3
0
DS26518 8-Port T1/E1/J1 Transceiver
RLS2
SEFE
RSA0
2
0
2
0
for E1 Mode.
RCMF
B8ZS
1
0
1
0
FBE
RAF
RLS2
0
0
0
0
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