Chapter 3:
Advanced SelectIO Logic Resources
3-State Parallel-to-Serial Conversion
In addition to parallel-to-serial conversion of data, an OSERDESE2 module also contains a
parallel-to-serial converter for 3-state control of the IOB. Unlike data conversion, the
3-state converter can only serialize up to four bits of parallel 3-state signals. The 3-state
converter cannot be cascaded.
OSERDESE2 Primitive
The OSERDESE2 primitive is shown in
X-Ref Target - Figure 3-14
162
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CLK
CLKDIV
D1
D2
D3
D4
D5
D6
D7
D8
T1
T2
T3
T4
TCE
OCE
TBYTEIN
RST
SHIFTIN1
SHIFTIN2
Figure 3-14: OSERDESE2 Primitive
www.xilinx.com
Figure
3-14.
OSERDESE2
Primitive
7 Series FPGAs SelectIO Resources User Guide
OQ
OFB
TQ
TFB
TBYTEOUT
SHIFTOUT1
SHIFTOUT2
UG471_c3_14_041712
UG471 (v1.10) May 8, 2018
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