DS31256 Maxim Integrated Products, DS31256 Datasheet - Page 164

• Manufacturer Part Number: DS31256
• Description: IC CTRLR HDLC 256-CHANNEL 256BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS31256

• Controller Type: HDLC Controller
• Interface: Serial
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 500mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

12.2 TAP Controller State Machine Description
This section details the operation of the TAP controller state machine. See
each of the states. The TAP controller is a finite state machine, which responds to the logic level at JTMS
on the rising edge of JTCLK.
Figure 12-2. TAP Controller State Machine
1
0
Test-Logic-Reset
Run-Test/Idle
0
1
1
0
Capture-DR
1
Select
DR-Scan
Shift-DR
Exit1-DR
Pause-DR
Exit2-DR
Update-DR
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0
0
1
0
1
1
0
1
0
1
0
1
0
Capture-IR
1
Select
IR-Scan
Shift-IR
Exit1-IR
Pause-IR
Exit2-IR
Update-IR
Figure 12-2
0
0
1
0
0
1
0
1
0
1
0
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