Chapter 8: Configuration and Remote System Upgrades in Cyclone IV Devices
8–37
Configuration
May 2013
Altera Corporation
PS Configuration Using a Download Cable
In this section, the generic term “download cable” includes the Altera USB-Blaster
USB port download cable, MasterBlaster™ serial and USB communications cable,
ByteBlaster II parallel port download cable, the ByteBlasterMV
™
parallel port
download cable, and the EthernetBlaster communications cable.
In the PS configuration with a download cable, an intelligent host (such as a PC)
transfers data from a storage device to the Cyclone IV device through the download
cable.
t
CF2ST1
nCONFIG
high to
nSTATUS
high
—
230
µs
t
CF2CK
nCONFIG
high to first
rising edge on DCLK
230
—
µs
t
ST2CK
nSTATUS
high to first
rising edge of
DCLK
2
—
µs
t
DH
Data hold time after
rising edge on
DCLK
0
—
ns
t
CD2UM
CONF_DONE
high to
user mode
300
650
µs
t
CD2CU
CONF_DONE
high to
CLKUSR
enabled
4 × maximum
DCLK
period
—
—
t
CD2UMC
CONF_DONE
high to
user mode with
CLKUSR
option on
t
CD2CU
+ (3,192 × CLKUSR period)
—
—
t
DSU
Data setup time before
rising edge on
DCLK
5
8
—
—
ns
t
CH
DCLK
high time
3.2
6.4
—
—
ns
t
CL
DCLK
low time
3.2
6.4
—
—
ns
t
CLK
DCLK
period
7.5
15
—
—
ns
f
MAX
DCLK
frequency
—
—
133
66
MHz
(1) Applicable for Cyclone IV GX and Cyclone IV E devices with 1.2-V core voltage.
(2) Applicable for Cyclone IV E devices with 1.0-V core voltage.
(3) This value is applicable if you do not delay configuration by extending the
nCONFIG
or
nSTATUS
low pulse width.
(4) This value is applicable if you do not delay configuration by externally holding the
nSTATUS
low.
(5) The minimum and maximum numbers apply only if you choose the internal oscillator as the clock source for starting the device.
(6) Cyclone IV E devices with 1.0-V core voltage have slower F
MAX
when compared with Cyclone IV GX devices with 1.2-V core voltage.
Table 8–12. PS Configuration Timing Parameters For Cyclone IV Devices (Part 2 of 2)
Symbol
Parameter
Minimum
Maximum
Unit
Cyclone IV
(1)
Cyclone IV E
(2)
Cyclone IV
(1)
Cyclone IV E
(2)
Summary of Contents for Cyclone IV
Page 10: ...x Chapter Revision Dates Cyclone IV Device Handbook March 2016 Altera Corporation Volume 1...
Page 14: ...I 2 Section I Device Core Cyclone IV Device Handbook March 2016 Altera Corporation Volume 1...
Page 274: ...vi Contents Cyclone IV Device Handbook February 2015 Altera Corporation Volume 2...
Page 440: ...iv Contents Cyclone IV Device Handbook December 2016 Altera Corporation Volume 3...
Page 442: ...vi Chapter Revision Dates Cyclone IV Device Handbook December 2016 Altera Corporation Volume 3...
Page 446: ......