FIDO1100PQF208IR1 Innovasic Semiconductor Inc., FIDO1100PQF208IR1 Datasheet - Page 73

• Manufacturer Part Number: FIDO1100PQF208IR1
• Description: 32-bit Real-time Communications Controller
• Manufacturer: Innovasic Semiconductor Inc.

Flexible Input Deterministic Output (fido ® )
32-Bit Real-Time Communications Controller
The timing of the JTAG signals is shown in Figure 35. The TDO pin remains in the high
impedance state except during a shift-DR or shift-IR controller state. In the shift-DR and
shift-IR controller states, TDO is updated on the falling edge of TCK. TMS and TDI are
sampled on the rising edge of TCK.
10.1
The JTAG port contains an 8-bit-wide instruction register. Instructions are transferred to this
register during the shift-IR state of the TAP state machine and are decoded by entering the
Update-IR state of the TAP. The JTAG controller executes the last decoded instruction until
another new one is entered and decoded. The instructions and data are entered serially through
the TDI pin, LSB first.
The JTAG Test Access Port (TAP) instruction shift register will support the debug scan chain
commands shown in Table 23.
JTAG Scan Chain Debug Functionality
TDI
®
Input Mux
TDO
TMS
TCK
Figure 34. JTAG Port Register Interface
Figure 35. Timing of JTAG Signals
UNCONTROLLED WHEN PRINTED OR COPIED
Instruction Register
Instruction Decode
By-Pass Register
Boundary Scan
Tap Controller
ID Register
Page 73 of 81
IA211080807-06
Output Mux
November 20, 2009
http://www.Innovasic.com
Customer Support:
Data Sheet
1-888-824-4184