DS21352L Maxim Integrated Products, DS21352L Datasheet - Page 101

• Manufacturer Part Number: DS21352L
• Description: IC TXRX T1 1-CHIP 3.3V 100-LQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS21352L

• Function: Single-Chip Transceiver
• Interface: HDLC, T1
• Number Of Circuits: 1
• Voltage - Supply: 3.14 V ~ 3.47 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Includes: DSX-1 and CSU Line Build-Out Generator, HDLC Controller, In-Band Loop Code Generator and Detector
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power (watts): -

Figure 19-2 TAP CONTROLLER STATE DIAGRAM
19.3 INSTRUCTION REGISTER
The instruction register contains a shift register as well as a latched parallel output and is 3 bits in length.
When the TAP controller enters the Shift-IR state, the instruction shift register will be connected between
JTDI and JTDO. While in the Shift-IR state, a rising edge on JTCLK with JTMS LOW will shift the data
one stage towards the serial output at JTDO. A rising edge on JTCLK in the Exit1-IR state or the Exit2-
IR state with JTMS HIGH will move the controller to the Update-IR state. The falling edge of that same
JTCLK will latch the data in the instruction shift register to the instruction parallel output. Instructions
supported by the DS21352/552 with their respective operational binary codes are shown in Table 19-1.
1
0
Test Logic
Reset
Run Test/
Idle
0
1
0
1
Capture DR
Update DR
1
Pause DR
Select
DR-Scan
Exit2 DR
Shift DR
Exit DR
101 of 137
0
1
0
0
1
0
1
1
0
0
1
0
1
Capture IR
Update IR
1
Pause IR
Select
IR-Scan
Shift IR
Exit2 IR
Exit IR
0
1
1
1
0
0
0
1
1
0
0