JTAG Interfaces

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

Document ID
UG1085
Release Date
2022-09-15
Revision
2.3 English

There are two JTAG port interfaces: PSJTAG and PJTAG. The PSJTAG port can reach all TAP controllers on the chain. The signals are on the device pins listed in Table: PS JTAG Interface Pins.

The PJTAG interface port provides exclusive access to the Arm DAP controller. The PJTAG interface signals on MIO are listed in Table: MIO Interfaces.

PSJTAG is discussed in System Test and Debug.

Table 2-3:      PS JTAG Interface Pins

Pin Name

Direction

Description

PS_JTAG_TCK

Input

JTAG data clock.

PS_JTAG_TDI

Input

JTAG data input.

PS_JTAG_TDO

Output

JTAG data output.

PS_JTAG_TMS

Input

JTAG mode select.