RX610 Group
28. Boundary Scan
R01UH0032EJ0120 Rev.1.20
Page 951 of 1006
Feb 20, 2013
(5) CLAMP [Instruction Code: 0110b]
When the CLAMP instruction is selected, output pins output the boundary scan register value which was specified by the
SAMPLE/PRELOAD instruction in advance. While the CLAMP instruction is selected, the status of boundary scan
register is maintained regardless of the TAP controller state.
BYPASS is connected between TDI and TDO, the same operation as BYPASS instruction can be achieved.
(6) HIGHZ [Instruction Code: 0111b]
When the HIGHZ instruction is selected, all output pins enter high-impedance state. While the HIGHZ instruction is
selected, the status of boundary scan register is maintained regardless of the state of the TAP controller.
BYPASS is connected between TDI and TDO pins, leading to the same operation as when the BYPASS instruction has
been selected.