请教 怎么输入 JTAG instruction

请教怎么输入JTAG instruction?
The Cyclone III AP configuration scheme configures from
the default boot address at 0x20000 using byte addressing
or 0x10000 using word addressing. To configure the AP
configuration scheme from a different boot address, execute
the JTAG instruction APFC_BOOT_ADDR to change the boot
address of the Cyclone III device.
现在想使用APFC_BOOT_ADDR  命令改变bootaddress，不知道怎么操作，请高手指教

没人知道?