DS26521LN+ Maxim Integrated Products, DS26521LN+ Datasheet - Page 255
DS26521LN+
Manufacturer Part Number
DS26521LN+
Description
IC TXRX T1/E1/J1 64-LQFP
Manufacturer
Maxim Integrated Products
Type
Line Interface Units (LIUs)r
Datasheet
1.DS26521LN.pdf
(258 pages)
Specifications of DS26521LN+
Number Of Drivers/receivers
1/1
Protocol
T1/E1/J1
Voltage - Supply
3.135 V ~ 3.465 V
Mounting Type
Surface Mount
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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13.3
Table 13-2. ID Code Structure
DS26521
DS26522
13.4
IEEE 1149.1 requires a minimum of two test registers: the bypass register and the boundary scan register. An
optional test register has been included with the DS26521 design. This test register is the identification register and
is used in conjunction with the IDCODE instruction and the Test-Logic-Reset state of the TAP controller.
13.4.1 Boundary Scan Register
This register contains both a shift register path and a latched parallel output for all control cells and digital I/O cells,
and is n bits in length.
13.4.2 Bypass Register
This is a single one-bit shift register used in conjunction with the BYPASS, CLAMP, and HIGHZ instructions, which
provides a short path between JTDI and JTDO.
13.4.3 Identification Register
The identification register contains a 32-bit shift register and a 32-bit latched parallel output. This register is
selected during the IDCODE instruction and when the TAP controller is in the Test-Logic-Reset state.
DEVICE
JTAG ID Codes
Test Registers
Consult factory
Consult factory
REVISION
ID[31:28]
0000000010001000
0000000010001001
DEVICE CODE
ID[27:12]
255 of 258
MANUFACTURER’S CODE
00010100001
00010100001
ID[11:1]
DS26521 Single T1/E1/J1 Transceiver
REQUIRED
ID[0]
1
1
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