Quad-Serial Configuration (EPCQ) Devices Datasheet

ID 683078
Date 1/23/2020
Public
Document Table of Contents

1.6.3. Non-Volatile Configuration Register

Table 28.  Dummy Clock Cycles and Address Bytes for the Non-Volatile Configuration Register Operation
FPGA Device Dummy Clock Cycles
AS x1 AS x4
  • Arria® GX
  • Arria® II
  • Cyclone®
  • Cyclone® II
  • Cyclone® III
  • Cyclone® IV
  • Stratix®
  • Stratix® GX
  • Stratix® II
  • Stratix® II GX
  • Stratix® III
  • Stratix® IV
  • Intel® Cyclone® 10 LP
8
Table 29.  Dummy Clock Cycles and Address Bytes for the Non-Volatile Configuration Register Operation for Arria V, Cyclone V and Stratix V Devices
FPGA Device Address Bytes12 Dummy Clock Cycles
AS x1 AS x4
  • Arria V
  • Cyclone V
  • Stratix V
3-byte addressing 12 12
4-byte addressing 4 10
Table 30.  Non-Volatile Configuration Register Operation Bit Definition
Bit Description Default Value
15:12 Number of dummy clock cycles. When this number is from 0001 to 1110, the dummy clock cycles is from 1 to 14. 0000 or 1111 13
11:5 Set these bits to 1111111. 1111111
4 Don't care. 1
3:1 Set these bits to 111. 111
0 Address byte setting.
  • 0—4-byte addressing
  • 1—3-byte addressing
1
12 The 4-byte addressing mode is used for EPCQ256 and EPCQ512/A devices.
13 The default dummy clock cycles is 10 for extended quad input fast read and 8 for extended dual input fast and standard fast read.