Ps Configuration Using A Download Cable - Altera Cyclone IV Device Handbook

Chapter 8: Configuration and Remote System Upgrades in Cyclone IV Devices
Configuration
Table 8–12. PS Configuration Timing Parameters For Cyclone IV Devices (Part 2 of 2)
Symbol Parameter
nCONFIG high to
t
CF2ST1
nSTATUS high
nCONFIG high to first
t
CF2CK
rising edge on DCLK
nSTATUS high to first
t
ST2CK
rising edge of DCLK
Data hold time after
t
DH
rising edge on DCLK
CONF_DONE high to
t
CD2UM
(5)
user mode
CONF_DONE high to
t
CD2CU
CLKUSR enabled
CONF_DONE high to
t user mode with
CD2UMC
CLKUSR option on
Data setup time before
t
DSU
rising edge on DCLK
t
DCLK high time
CH
t
DCLK low time
CL
t
DCLK period
CLK
f
DCLK frequency
MAX
Notes to Table 8–12:
(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

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
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.
May 2013 Altera Corporation
Minimum
(1)
Cyclone IV
—
230
2
0
300
4 × maximum DCLK period
t + (3,192 × CLKUSR period)
CD2CU
5
3.2
3.2
7.5
(6)
—
when compared with Cyclone IV GX devices with 1.2-V core voltage.
MAX
(2)
Cyclone IV E Cyclone IV
(3)
8 —
6.4 —
6.4 —
15 —
— 133
8–37
Maximum
Unit
(1) (2)
Cyclone IV E
(4)
230 µs
— µs
— µs
— ns
650 µs
— —
— —
— ns
— ns
— ns
— ns
66 MHz
™
parallel port
Cyclone IV Device Handbook,
Volume 1