DS26528 Datasheet, PDF (114/269 Pages) Maxim Integrated Products – Octal T1/E1/J1 Transceiver

DS26528 Octal T1/E1/J1 Transceiver
Register Name:
Register Description:
Register Address:
Read/Write Function
IDR
Device Identification Register
0F8H
R
Bit #
7
6
5
4
3
2
1
0
Name
ID7
ID6
ID5
ID4
ID3
ID2
ID1
ID0
Default
0
1
0
1
1
0
0
1
Bits 7 to 3: Device ID (ID3 to ID7). The upper five bits of the IDR are used to display the DS26528 ID.
Table 10-12. Device ID Codes in this Product Family
DEVICE
ID7
ID6
ID5
ID4
ID3
DS26528
0
1
0
1
1
DS26524
0
1
1
0
0
DS26522
0
1
1
0
1
DS26521
0
1
1
1
0
Bits 2 to 0: Silicon Revision Bits (ID0 to ID2). The lower three bits of the IDR are used to display a sequential
number denoting the die revision of the chip. The initial silicon revision = “000”, and is incremented with each
silicon revision. This value is not the same as the two-character device revision on the top brand of the device. This
is due to the fact that portions of the device assembly other than the silicon may change, causing the device
revision increment on the brand without having a revision of the silicon. IDO is the LSB of a decimal code that
represents the chip revision.
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