EP2AGX95EF29C6N Datasheet, PDF (324/380 Pages) Altera Corporation – Device Interfaces and Integration

9–38
Chapter 9: Configuration, Design Security, and Remote System Upgrades in Arria II Devices
JTAG Configuration
Figure 9–18 shows a JTAG configuration of an Arria II device using a microprocessor.
Figure 9–18. JTAG Configuration of a Single Device Using a Microprocessor
Memory
ADDR
DATA
Microprocessor
V_CCIO/ V_CCPGM
(1)
V_CCIO/ V_CCPGM
(1)
10 kΩ
Arria II Device
10 kΩ
nSTATUS
CONF_DONE
TDI (2)
TCK (2)
TMS (2)
TDO (2)
DCLK
nCONFIG
MSEL[n..0]
nCEO
(3) nCE
(4)
(4)
(4)
N.C.
GND
Notes to Figure 9–18:
(1) Connect the pull-up resistor to a supply that provides an acceptable input signal for all Arria II devices in the chain.
The V_CCIO power supply for Arria II GX devices or the V_CCPGM power supply for Arria II GZ devices must be high
enough to meet the V_IH specification of the I/O on the device.
(2) To drive the JTAG pins, the microprocessor must use the same I/O standard as V_CCIO for Arria II GX devices or V_CCPD
for Arria II GZ devices.
(3) You must connect nCE to GND or drive it low for successful JTAG configuration.
(4) Connect the nCONFIG and MSEL pins to support a non-JTAG configuration scheme. If you use only the JTAG
configuration, connect nCONFIG to the V_CCIO for Arria II GX device, V_CCPGM for Arria II GZ device, and MSEL to GND.
Pull DCLK either high or low, whichever is convenient on your board. Arria II GX devices use MSEL[3..0] pins while
Arria II GZ devices use MSEL[2..0] pins.
Jam STAPL
Jam standard test and programming language (STAPL), JEDEC standard JESD-71, is a
standard file format for in-system programmability (ISP) purposes. Jam STAPL
supports programming or configuration of programmable devices and testing of
electronic systems, using the IEEE 1149.1 JTAG interface. Jam STAPL is a freely
licensed open standard.
The Jam Player provides an interface for manipulating the IEEE Std. 1149.1 JTAG TAP
state machine.
f For more information about JTAG and Jam STAPL in embedded environments, refer
to AN 425: Using Command-Line Jam STAPL Solution for Device Programming. To
download the Jam Player, visit the Altera website.
Arria II Device Handbook Volume 1: Device Interfaces and Integration
July 2012 Altera Corporation