tfra08c13 ETC-unknow, tfra08c13 Datasheet - Page 107

• Manufacturer Part Number: tfra08c13
• Description: Tfra08c13 Octal T1/e1 Framer
• Manufacturer: ETC-unknow

Preliminary Data Sheet
October 2000
Lucent Technologies Inc.
Lucent Technologies Inc.
JTAG Boundary-Scan Specification
Test Access Port Controller
The test access port controller is a synchronous sequence controller with 16 states. The state changes are preset
by the TMS, TCK, and TRST signals and by the previous state. The state changes always take place when the
TCK edge rises. Figure 45 shows the TAP controller state diagram.
The value shown next to each state transition in Figure 45 represents the signal present at TMS at the time of a ris-
ing edge at TCK.
The description of the TAP controller states is given in IEEE Std. 1149.1-1990 Section 5.1.2 and is reproduced in
Table 49 and Table 50.
1
0
TEST LOGIC
RUN TEST/
TRST = 0
RESET
IDLE
0
Figure 45. BS TAP Controller State Diagram
1
0
1
(continued)
CAPTURE-DR
UPDATE-DR
SELECT-DR
PAUSE-DR
EXIT1-DR
EXIT2-DR
SHIFT-DR
0
0
1
0
1
1
0
0
0
1
1
TFRA08C13 OCTAL T1/E1 Framer
0
1
1
CAPTURE-IR
UPDATE-IR
SELECT-IR
PAUSE-IR
SHIFT-IR
EXIT1-IR
EXIT2-IR
0
0
1
0
1
1
0
0
1
0
1
5-3924(F)r.5
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