DS21354/DS21554 3.3V/5V E1 Single-Chip Transceivers
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Figure 16-1. JTAG Functional Block Diagram
+V
BOUNDARY
SCAN REGISTER
IDENTIFICATION
REGISTER
BYPASS
REGISTER
INSTRUCTION
REGISTER
JTDI JTMS JTCLK
TRST
JTDO
+V +V
TEST ACCESS
PORT
MUX
10kW
10kW
10kW
SELECT
OUTPUT ENABLE
