Altera Virtual JTAG IP Core User Manual
Page 12
Table 5: Low-Level Virtual JTAG State Signals
Comments
Description
Required
Port Name
Shared among all virtual
JTAG instances.
Indicates that the device JTAG
controller is in the Test_Logic_
Reset state.
No
jtag_state_tlr
Shared among all virtual
JTAG instances.
Indicates that the device JTAG
controller is in the Run_Test/
Idle state.
No
jtag_state_rti
Shared among all virtual
JTAG instances.
Indicates that the device JTAG
controller is in the Select_DR_
Scan state.
No
jtag_state_sdrs
Shared among all virtual
JTAG instances.
Indicates that the device JTAG
controller is in the Capture_DR
state.
No
j
tag_state_cdr
Shared among all virtual
JTAG instances.
Indicates that the device JTAG
controller is in the Shift_DR
state.
No
jtag_state_sdr
Shared among all virtual
JTAG instances.
Indicates that the device JTAG
controller is in the Exit1_DR
state.
No
jtag_state_e1dr
Shared among all virtual
JTAG instances.
Indicates that the device JTAG
controller is in the Pause_DR
state.
No
jtag_state_pdr
Shared among all virtual
JTAG instances.
Indicates that the device JTAG
controller is in the Exit2_DR
state.
No
jtag_state_e2dr
Shared among all virtual
JTAG instances.
Indicates that the device JTAG
controller is in the Update_DR
state.
No
jtag_state_udr
Shared among all virtual
JTAG instances.
Indicates that the device JTAG
controller is in the Select_IR_
Scan state.
No
jtag_state_sirs
Shared among all virtual
JTAG instances.
Indicates that the device JTAG
controller is in the Capture_IR
state.
No
j
tag_state_cir
Shared among all virtual
JTAG instances.
Indicates that the device JTAG
controller is in the Shift_IR
state.
No
jtag_state_sir
Virtual JTAG Megafunction (sld_virtual_jtag)
Altera Corporation
UG-SLDVRTL
Output Ports
12
2014.03.19