Chapter 9: Configuration, Design Security, and Remote System Upgrades in the Cyclone III Device Family
9–65
Configuration Features
Table 9–21 lists the Cyclone III device family pin configuration.
Table 9–21. Cyclone III Device Family Configuration Pin Summary
Bank
Description
FLASH_nCE, nCSO
CRC_ERROR
Input/Output
Output
Output
Input
Dedicated
Powered By
Configuration Mode
(2)
1
6
—
—
VCCIO
AS, AP
(1)
VCCIO/Pull-up
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
Pull-up
Pull-up
VCCIO
VCCIO
VCCIO
Pull-up
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCINT
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
Optional, all modes
PS, FPP, AS
1
1
8
DATA[0]
Yes
(2)
Bidirectional
Input
AP
FPP
AS
DATA[1], ASDO
DATA[7..2]
Output
Bidirectional
Input
—
(2)
AP
FPP
(2)
Bidirectional
Bidirectional
Output
Bidirectional
Input
—
AP
(2)
8
6
1
1
DATA[15..8]
INIT_DONE
nSTATUS
nCE
AP
—
Optional, all modes
All modes
Yes
Yes
All modes
Input
PS, FPP
1
DCLK
Yes
(2)
Output
Bidirectional
Input
AS, AP
6
1
1
1
1
6
6
6
1
7
8
6
1
6
6
6
5
5
CONF_DONE
TDI
Yes
Yes
Yes
Yes
Yes
—
All modes
JTAG
TMS
Input
JTAG
TCK
Input
JTAG
nCONFIG
CLKUSR
nCEO
Input
All modes
Optional
Input
Output
Input
—
Optional, all modes
All modes
JTAG
MSEL[3..0]
TDO
Yes
Yes
—
Output
Output
Output
Output
Output
Output
Output
Output
Input
(2)
PADD[14..0]
PADD[19..15]
PADD[23..20]
nRESET
nAVD
AP
(2)
—
AP
(2)
—
AP
(2)
—
AP
(2)
—
AP
(2)
nOE
—
AP
(2)
nWE
—
AP
(2)
DEV_OE
DEV_CLRn
—
Optional, AP
(2)
Input
—
Optional, AP
Notes to Table 9–21:
(1) In Cyclone III devices, the CRC_ERRORpin is a dedicated output by default. Optionally, you can enable the CRC_ERRORpin as an open-drain output
in the CRC Error Detection tab from the Device and Pin Options dialog box.
(2) AP configuration is for Cyclone III devices only.
August 2012 Altera Corporation
Cyclone III Device Handbook
Volume 1
ALTERA [ ALTERA CORPORATION ]
