8–62
Chapter 8: Configuration and Remote System Upgrades in Cyclone IV Devices
Configuration
May 2013
Altera Corporation
Device Configuration Pins
through
describe the connections and functionality of all the
configuration related pins on Cyclone IV devices.
and
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]
Input
—
V
CCIO
FPP
3
Data[7:5]
Input
—
V
CCIO
FPP
9
nCSO
Output
—
V
CCIO
AS
3
CRC_ERROR
Output
—
V
CCIO
Optional, all modes
9
DATA[0]
Input
Yes
V
CCIO
PS, FPP, AS
9
DATA[1]/ASDO
Input
—
V
CCIO
FPP
Output
V
CCIO
AS
3
INIT_DONE
Output
—
Pull-up
Optional, all modes
3
nSTATUS
Bidirectional
Yes
Pull-up
All modes
9
nCE
Input
Yes
V
CCIO
All modes
9
DCLK
Input
Yes
V
CCIO
PS, FPP
Output
V
CCIO
AS
3
CONF_DONE
Bidirectional
Yes
Pull-up
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
(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-k
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
Description
Input/Output
Dedicated
Powered By
Configuration Mode
1
FLASH_nCE
Output
—
V
CCIO
AS, AP
6
CRC_ERROR
Output
—
V
CCIO
Optional, all modes
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: ......