Zynq UltraScale+ Devices Register Reference > Module Summary > CSU Module > jtag_chain_cfg (CSU) Register

jtag_chain_cfg (CSU) Register

jtag_chain_cfg (CSU) Register Description

Register Namejtag_chain_cfg
Relative Address0x0000000030
Absolute Address 0x00FFCA0030 (CSU)
Width32
TypewoWrite-only
Reset Value0x00000000
DescriptionJTAG Chain Configuration

jtag_chain_cfg (CSU) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
ssss_link_arm_dap 1woWrite-only0x0Write a 1 to toggle the Arm DAP on/off the JTAG chain. The current status of the Arm DAP can be read from the JTAG_STATUS register. JTAG TCK must be toggling for the link to occur.
Self clearing bit.
ssss_link_pl_tap 0woWrite-only0x0Write a 1 to toggle the PL TAP on/off the JTAG chain. The current status of the PL TAP can be read from the JTAG_STATUS register. JTAG TCK must be toggling for the link to occur.
Self clearing bit.