tmp19a61f10xbg TOSHIBA Semiconductor CORPORATION, tmp19a61f10xbg Datasheet - Page 491

• Manufacturer Part Number: tmp19a61f10xbg
• Description: 32-bit Tx System Risc Tx19 Family
• Manufacturer: TOSHIBA Semiconductor CORPORATION

21.2 JTAG Interface Signals
The JTAG mechanism does not have a function of testing the processor itself.
The JTAG boundary scan mechanism (hereafter called "JTAG mechanism") enables testing of the
processor, printed circuit boards connected to the processor, and connections between other
components on printed circuit boards.
JTAG interface signals are as follows (see Fig. 21.2):
•
•
•
•
•
TRST
TDI
TDO
TMS
TCK
TAP controller
To input JTAG serial data
To output JTAG serial data
To select JTAG test mode
To input JTAG serial clock
To input JTAG test reset
Fig. 21.2 Interface Signals and Registers
TMP19A61 (rev1.0)21-490
296
3
Boundary scan register
Instruction register
Bypass register
0
0
0
JTDI pin
JTDO pin
JTMS pin
JTCK pin
TRST pin
TMP19A61