DS26502LN+ Maxim Integrated Products, DS26502LN+ Datasheet - Page 99
DS26502LN+
Manufacturer Part Number
DS26502LN+
Description
IC T1/E1/J1 64KCC ELEMENT 64LQFP
Manufacturer
Maxim Integrated Products
Type
BITS Elementr
Datasheet
1.DS26502LN.pdf
(125 pages)
Specifications of DS26502LN+
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Frequency-max
-
Output
-
Input
-
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17. JTAG BOUNDARY SCAN ARCHITECTURE AND TEST ACCESS PORT
The DS26502 supports the standard IEEE 1149.1 instruction codes SAMPLE/PRELOAD, BYPASS, and
EXTEST. Optional public instructions included are HIGHZ, CLAMP, and IDCODE. The DS26502
contains the following as required by IEEE 1149.1 Standard Test Access Port and Boundary Scan
Architecture:
Details on Boundary Scan Architecture and the Test Access Port can be found in IEEE 1149.1-1990,
IEEE 1149.1a-1993, and IEEE 1149.1b-1994.
The Test Access Port has the necessary interface pins: JTRST, JTCLK, JTMS, JTDI, and JTDO. See the
pin descriptions for details.
Figure 17-1. JTAG Functional Block Diagram
Test Access Port (TAP)
TAP Controller
Instruction Register
Bypass Register
Boundary Scan Register
Device Identification Register
10kΩ
V
DD
JTDI
10kΩ
V
DD
JTMS
TEST ACCESS PORT
BOUNDRY SCAN
IDENTIFICATION
INSTRUCTION
CONTROLLER
REGISTER
REGISTER
REGISTER
REGISTER
BYPASS
JTCLK
99 of 125
10kΩ
V
DD
JTRST
SELECT
OUTPUT ENABLE
MUX
JTDO
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