EP2AGX95EF29C6N Datasheet, PDF (304/380 Pages) Altera Corporation – Device Interfaces and Integration

9–18
Chapter 9: Configuration, Design Security, and Remote System Upgrades in Arria II Devices
Fast Passive Parallel Configuration
Table 9–10 lists the timing parameters for Arria II devices for an FPP configuration
when you enable the decompression, the design security features, or both.
Table 9–10. FPP Timing Parameters for Arria II GX Devices with the Decompression or Design Security Features Enabled
(Note 1)
Symbol
Parameter
Minimum
Maximum
Units
t_CF2CD
t_CF2ST0
t_CFG
t_STATUS
t_CF2ST1 (2)
t_CF2CK
t_ST2CK
t_DSU
t_DH
t_CH
t_CL
t_CLK
f_MAX
t_DATA
t_R
t
nCONFIG low to CONF_DONE low
nCONFIG low to nSTATUS low
nCONFIG low pulse width
nSTATUS low pulse width
nCONFIG high to nSTATUS high
nCONFIG high to first rising edge on DCLK
nSTATUS high to first rising edge of DCLK
Data setup time before rising edge on DCLK
Data hold time after rising edge on DCLK
DCLK high time
DCLK low time
DCLK period
DCLK frequency
Data rate
Input rise time
Input fall time
—
—
2
10
—
500
2
4
24 (4)
3.2 (4)
3.2 (4)
8
—
—
—
—
800
800
—
500 (3)
500 (3)
—
—
—
—
—
—
—
125
250
40
40
ns
ns
s
s
s
s
s
ns
ns
ns
ns
ns
MHz
Mbps
ns
ns
t_CD2UM
t_CD2CU
CONF_DONE high to user mode (5)
CONF_DONE high to CLKUSR enabled
55
150
s
4 × maximum
DCLK period
—
—
t_CD2CU + (8532
t_CD2UMC
CONF_DONE high to user mode with CLKUSR option on
× CLKUSR
—
—
period)
Notes to Table 9–10:
(1) Use these timing parameters when you enable the decompression and design security features.
(2) This value is applicable if you do not delay configuration by externally holding the nSTATUS low.
(3) You can obtain this value if you do not delay configuration by extending the nCONFIG or nSTATUS low pulse width.
(4) The values listed for t_DH, t_CH, and t_CL are applicable only for Arria II GX devices. For Arria II GZ devices, t_DH = 3/(DCLK frequency) + 1,
t_CH = 3.6 ns, and t_CL = 3.6 ns, respectively.
(5) The minimum and maximum numbers apply only if you choose the internal oscillator as the clock source for initializing the device.
f For more information about setting device configuration options or creating
configuration files, refer to the Device Configuration Options and Configuration File
Formats chapters in volume 2 of the Configuration Handbook.
Arria II Device Handbook Volume 1: Device Interfaces and Integration
July 2012 Altera Corporation