EP4CE30F29C7N Datasheet, PDF (226/488 Pages) Altera Corporation – Cyclone IV Device Handbook, Volume 1

8–62
Chapter 8: Configuration and Remote System Upgrades in Cyclone IV Devices
Configuration
Device Configuration Pins
Table 8–18 through Table 8–21 describe the connections and functionality of all the
configuration related pins on Cyclone IV devices. Table 8–18 and Table 8–19 list the
device pin configuration for the Cyclone IV GX and Cyclone IV E, respectively.
Table 8–18. Configuration Pin Summary for Cyclone IV GX Devices
Bank
Description
Input/Output
Dedicated
Powered By
Configuration Mode
8 Data[4:2]
3 Data[7:5]
9 nCSO ⁽²⁾
3 CRC_ERROR
9 DATA[0] ⁽²⁾
9 DATA[1]/ASDO ⁽²⁾
3 INIT_DONE
Input
Input
Output
Output
Input
Input
Output
Output
—
V_CCIO
FPP
—
V_CCIO
FPP
—
V_CCIO
AS
—
V_CCIO/Pull-up ⁽¹⁾
Optional, all modes
Yes
V_CCIO
PS, FPP, AS
—
V_CCIO
FPP
V_CCIO
AS
—
Pull-up
Optional, all modes
3 nSTATUS
Bidirectional
Yes
Pull-up
All modes
9 nCE
9 DCLK ⁽²⁾
3 CONF_DONE
Input
Yes
Input
Yes
Output
Bidirectional
Yes
V_CCIO
V_CCIO
V_CCIO
Pull-up
All modes
PS, FPP
AS
All modes
9 TDI
Input
Yes
V_CCIO
JTAG
9 TMS
Input
Yes
V_CCIO
JTAG
9 TCK
Input
Yes
V_CCIO
JTAG
9 nCONFIG
Input
Yes
V_CCIO
All modes
8 CLKUSR
Input
—
V_CCIO
Optional
3 nCEO
Output
—
V_CCIO
Optional, all modes
3 MSEL
Input
Yes
V_CCINT
All modes
9 TDO
Output
Yes
V_CCIO
JTAG
6 DEV_OE
Input
—
V_CCIO
Optional
6 DEV_CLRn
Input
—
V_CCIO
Optional
Notes to Table 8–18:
(1) The CRC_ERROR pin is a dedicated open-drain output or an optional user I/O pin. Active high signal indicates that the error detection circuit has
detected errors in the configuration SRAM bits. This pin is optional and is used when the CRC error detection circuit is enabled in the Quartus II
software from the Error Detection CRC tab of the Device and Pin Options dialog box. When using this pin, connect it to an external 10-kΩ
pull-up resistor to an acceptable voltage that satisfies the input voltage of the receiving device.
(2) To tri-state AS configuration pins in the AS configuration scheme, turn on the Enable input tri-state on active configuration pins in user mode
option from the Device and Pin Options dialog box. This tri-states DCLK, nCSO, Data[0], and Data[1]/ASDO pins. Dual-purpose pins settings
for these pins are ignored. To set these pins to different settings, turn off the Enable input tri-state on active configuration pins in user mode
option and set the desired setting from the Dual-purpose Pins Setting menu.
Table 8–19. Configuration Pin Summary for Cyclone IV E Devices (Part 1 of 3)
Bank
1
6
Description
nCSO ⁽¹⁾
FLASH_nCE ⁽²⁾
CRC_ERROR ⁽³⁾
Input/Output
Output
Output
Dedicated
—
—
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V_CCIO
V_CCIO/Pull-up ⁽⁴⁾
Configuration Mode
AS, AP
Optional, all modes
Cyclone IV Device Handbook,
Volume 1
May 2013 Altera Corporation