EP3C16F484A7N Altera, EP3C16F484A7N Datasheet - Page 272

• Manufacturer Part Number: EP3C16F484A7N
• Description: Cyclone III
• Manufacturer: Altera

Specifications of EP3C16F484A7N

• Family Name: Cyclone III
• Number Of Logic Blocks/elements: 15408
• # I/os (max): 346
• Frequency (max): 437.5MHz
• Process Technology: 65nm
• Operating Supply Voltage (typ): 1.2V
• Logic Cells: 15408
• Ram Bits: 516096
• Operating Supply Voltage (min): 1.15V
• Operating Supply Voltage (max): 1.25V
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 484
• Package Type: FBGA
• Lead Free Status / Rohs Status: Compliant

12–6
Guidelines for IEEE Std. 1149.1 BST
Cyclone III Device Handbook, Volume 1
Figure 12–1
inserted in the chain.
Figure 12–1. JTAG Chain of Mixed Voltages
Use the following guidelines when performing BST with IEEE Std. 1149.1 devices:
■
■
■
■
If the 10 bit checkerboard pattern (1010101010) does not shift out of the instruction
register via the TDO pin during the first clock cycle of the SHIFT_IR state, the TAP
controller did not reach the proper state. To solve this problem, try one of the
following procedures:
■
■
Perform a SAMPLE/PRELOAD test cycle prior to the first EXTEST test cycle to
ensure that known data is present at the device pins when you enter the EXTEST
mode. If the OEJ update register contains a 0, the data in the OUTJ update register
is driven out. The state must be known and correct to avoid contention with other
devices in the system.
Do not perform EXTEST testing during ICR. This instruction is supported before
or after ICR, but not during ICR. Use the CONFIG_IO instruction to interrupt
configuration and then perform testing, or wait for configuration to complete.
If testing is performed before configuration, hold the nCONFIG pin low.
Verify that the TAP controller has reached the SHIFT_IR state correctly. To
advance the TAP controller to the SHIFT_IR state, return to the RESET state
and send the code 01100 to the TMS pin.
Check the connections to the VCC, GND, JTAG, and dedicated configuration
pins on the device.
shows the JTAG chain of mixed voltages and how a level shifter is
Tester
TDO
TDI
tester if necessary
level accepted by
Shift TDO to
Shifter
Chapter 12: IEEE 1149.1 (JTAG) Boundary-Scan Testing for the Cyclone III Device Family
Level
V
3.3 V
CCIO
Must be
tolerant
V
1.5 V
1.8 V
CCIO
Must be
tolerant
V
2.5 V
3.3 V
CCIO
© December 2009 Altera Corporation
Guidelines for IEEE Std. 1149.1 BST
Must be
tolerant
V
1.8 V
2.5 V
CCIO