ATF1504ASZ
load data into the update registers. Control signals are gen-
erated internally by the JTAG TAP controller. The BSC
configuration for the input and I/O pins and macrocells are
shown below.
BSC Configuration for Input and I/O
Pins (except JTAG TAP Pins)
BSC Configuration for Macrocell
Pin BSC
TDO
Pin
0
DQ
1
Capture
DR
TDI Clock
Shift
Note: The ATF1504AS has pull-up option on TMS and TDI
pins. This feature is selected as a design option.
OEJ
0
1
TDO
DQ
0
1
DQ
OUTJ
0
DQ
1
0
1
Pin
DQ
Capture
DR
Update
DR
TDI
Shift
Clock
Mode
Macrocell BSC
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