EP4CE30F29C7N Datasheet, PDF (201/488 Pages) Altera Corporation – Cyclone IV Device Handbook, Volume 1

Chapter 8: Configuration and Remote System Upgrades in Cyclone IV Devices
Configuration
8–37
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⁾
t_CF2ST1
t_CF2CK
nCONFIG high to
nSTATUS high
nCONFIG high to first
rising edge on DCLK
—
230 ⁽³⁾
230 ⁽⁴⁾
µs
—
µs
t_ST2CK
nSTATUS high to first
rising edge of DCLK
2
Data hold time after
t_DH
rising edge on DCLK
0
t_CD2UM
CONF_DONE high to
user mode ⁽⁵⁾
300
—
µs
—
ns
650
µs
t_CD2CU
CONF_DONE high to
CLKUSR enabled
4 × maximum DCLK period
—
—
CONF_DONE high to
t_CD2UMC
user mode with
t_CD2CU + (3,192 × CLKUSR period)
—
—
CLKUSR option on
Data setup time before
t_DSU
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 ⁽⁶⁾
—
—
133
66
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_MAX when compared with Cyclone IV GX devices with 1.2-V core voltage.
MHz
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.
May 2013 Altera Corporation
Cyclone IV Device Handbook,
Volume 1