EP4CE30F29C7N Datasheet, PDF (218/488 Pages) Altera Corporation – Cyclone IV Device Handbook, Volume 1

8–54
Chapter 8: Configuration and Remote System Upgrades in Cyclone IV Devices
Configuration
Figure 8–28. Combining JTAG and AS Configuration Schemes
V_CCIO(1) V_CCIO(1) V_CCIO(1)
10 kΩ 10 kΩ 10 kΩ
Serial ^10kΩ
Configuration
Device
GND
DATA
DCLK
nCS
ASDI
3.3 V 3.3 V
3.3 V _{3.3 V}
(6)
Cyclone IV Device
nSTATUS
CONF_DONE nCEO
nCONFIG
nCE
CLKUSR
MSEL[ ]
DATA[0]
DCLK
nCSO (7)
ASDO (7)
TCK
TDO
TMS
TDI
V_CCA
N.C.
(9)
(4)
(8)
V_CCA
(8)
Download Cable
(JTAG Mode)
10-Pin Male Header
(top view)
Pin 1
V_CCA (5)
Pin 1 _{3.3 V (2)}
V_IO (3)
1 kΩ
Download Cable
(AS Mode)
10-Pin Male Header
10 pf
GND
10 pf
GND
10 pf
10 pf _GND
GND
(6)
GND
Notes to Figure 8–28:
(1) Connect these pull-up resistors to the V_CCIO supply of the bank in which the pin resides.
(2) Power up the V_CC of the EthernetBlaster, ByteBlaster II, or USB-Blaster cable with the 3.3-V supply.
(3) Pin 6 of the header is a V_IO reference voltage for the MasterBlaster output driver.The V_IO must match the V_CCA of the
device. For this value, refer to the MasterBlaster Serial/USB Communications Cable User Guide. When using the
ByteBlasterMV download cable, this pin is a no connect. When using the USB-Blaster and ByteBlaster II cables, this
pin is connected to nCE when it is used for AS programming, otherwise it is a no connect.
(4) The MSEL pin settings vary for different configuration voltage standards and POR time. To connect MSEL for AS
configuration schemes, refer to Table 8–3 on page 8–8, Table 8–4 on page 8–8, and Table 8–5 on page 8–9. Connect
the MSEL pins directly to V_CCA or GND.
(5) Power up the V_CC of the EthernetBlaster, ByteBlaster II, USB-Blaster, or ByteBlasterMV cable with a 2.5-V V_CCA supply.
Third-party programmers must switch to 2.5 V. Pin 4 of the header is a V_CC power supply for the MasterBlaster cable.
The MasterBlaster cable can receive power from either 5.0- or 3.3-V circuit boards, DC power supply, or 5.0 V from
the USB cable. For this value, refer to the MasterBlaster Serial/USB Communications Cable User Guide.
(6) You must place the diodes and capacitors as close as possible to the Cyclone IV device. Altera recommends using
the Schottky diode, which has a relatively lower forward diode voltage (VF) than the switching and Zener diodes, for
effective voltage clamping.
(7) These pins are dual-purpose I/O pins. The nCSO pin functions as FLASH_nCE pin in AP mode. The ASDO pin functions
as DATA[1] pin in AP and FPP modes.
(8) Resistor value can vary from 1 kΩ to 10 kΩ..
(9) Only Cyclone IV GX devices have an option to select CLKUSR (40 MHz maximum) as the external clock source for
DCLK.
Cyclone IV Device Handbook,
Volume 1
May 2013 Altera Corporation