Figure 11-1 Tap Block Diagram; Jtag Signals - Motorola DSP56309 User Manual

JTAG Port

JTAG Signals

TDI
TMS
TAP
TCK
Ctrl
TRST
11.2 JTAG SIGNALS
As described in the IEEE 1149.1 document, the JTAG port requires a minimum of four
signals to support TDI, TDO, TCK, and TMS signals. The DSP56300 family also provides
11-4
Boundary Scan Register
Bypass
ID Register
OnCE Logic
Decoder
3 2 1
4-Bit Instruction Register

Figure 11-1 TAP Block Diagram

DSP56309UM/D
0
TDO
AA0113
MOTOROLA