
DS26528 Octal T1/E1/J1 Transceiver
275 of 276
16.
DOCUMENT REVISION HISTORY
REVISION
DATE
DESCRIPTION
PAGES
CHANGED
072304
New Product Release.
—
120204
1.
Corrected the default direction of RIOCR.RSIO = 1 to show that the default direction of
RSYNC is Input.
2.
Added Figure 13-3 for BPCLK and TSSYNCIO timing and updated Table 13-3.
3.
Corrected Figure 7-3 to show different relationship of TSSYNCIO depending on the
operation mode (either Input or Output).
4.
Added Section 9.9.6.3 to provide more details on Sa bit support.
5.
Modified RIM7 register at address 0A6h for E1 mode document additional Sa bit support.
6.
Added E1RSAIMR (014h) for E1 mode to allow Sa bit interrupt masks.
7.
Added SABITS (06Eh) register to indicate the last valid Sa bits received.
8.
Added Sa6CODE (06Fh) register to indicate the reported Sa6 received pattern.
9.
Changed the recommended Line Interface Circuit (Figure 9-11) to match the Telecom
App Note 324.
10. Corrected the Recommended Supply Decoupling Capacitor values: changed the digital
recommended value from 0.1
μF to 0.01μF because the 0.01μF value was listed twice.
11. Figure 8-1: Added associated port number to each analog ATVDD/ATVSS and
ARVDD/ARVSS pair to help clarify the recommended decoupling for these pins. Note:
The pin locations did not change, and the functional description did not change, the
numbers 1-8 were only added for clarification purposes.
12. Added a note to TTIP and TRING Pin descriptions in Table 8-1 to clarify that the two pins
shown should tied together (for example, pins A1 and A2 for TTIP1).
13. Corrected the AIS (Blue Alarm) set criteria from 5 or less zeros in a 3ms window to 4 or
less zeros and changed the clear criteria from 6 or more zeros in a 3ms window to 5 or
more zeros. This is defined in Table 9-23.
14. Added E1BCR1 and E1EBCR2 to Table 9-22.
15.
Added note to indicate that Transmit Open Circuit Detect and Short Circuit Detect are not
functional in the CSU modes (T1 LBO 5, 6 and 7). This was added in the bit description
of register LLSR Bit 1 (SCD) and Bit2 (OCD), as well as Section 9.11.2.4.
Various
pages
Removed references to RPOS/RNEG, TPOS/TNEG and replaced them with RTIP/RRING
and TTIP/TRING for clarification.
251, 253,
254, 256
012405
Corrected the typical current draw in Section 12.
246
Updated ordering information and absolute maximum ratings specs to show DS26528G and
DS26528GN package variants.
1, 246
081805
Replaced Figure 9-11 with corrected recommended network interface.
73
Added lead-free package (DS26528GN+) to Ordering Information table.
1
Removed incorrect reference to JACLK in Section 9.11.3.
79
Changed IDR register default value for Bit 1 from 0 to 1 (rev A4).
114
071006
Updated package information drawing and added link to online drawing.
269
Added commercial range parts to Ordering Information table.
1
Updated entire data sheet for typos and clarity to match the TEX-family data sheets
(DS26521, DS26522, DS26524).
—
102506
Modified description of TFPT bit for TCR1 (T1 Mode).
196