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EPC16 Datasheet(PDF) 24 Page - Altera Corporation

Part No. EPC16
Description  Enhanced Configuration (EPC) Devices Datasheet
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Maker  ALTERA [Altera Corporation]
Homepage  http://www.altera.com
Logo ALTERA - Altera Corporation

EPC16 Datasheet(HTML) 24 Page - Altera Corporation

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Page 24
Pin Description
Enhanced Configuration (EPC) Devices Datasheet
January 2012
Altera Corporation
WP#
Input
Usually tied to VCC or GND on the board. The controller does not drive this pin
because it could cause contention.
Connection to VCC is recommended for faster block erase or programming times
and to allow programming of the flash-bottom boot block, which is required when
programming the device using the Quartus II software.
This pin should be connected to VCC even when the external flash interface is not
used.
VCCW
Supply
Block erase, full-chip erase, word write, or lock-bit configuration power supply.
Connect this pin to the 3.3-V VCC supply, even when you are not using the external
flash interface.
RY/BY#
Open-Drain Output
Flash asserts this pin when a write or erase operation is complete. This pin is not
connected to the controller. RY/BY# is only available in Sharp flash-based EPC8
and EPC16. (2)
Leave this pin floating when the external flash interface is not used.
BYTE#
Input
Flash byte-enable pin and is only available for EPC devices in the 100-pin PQFP
package.
This pin must be connected to VCC on the board even when you are not using the
external flash interface (the controller uses the flash in 16-bit mode). For Intel
flash-based EPC device, this pin is connected to the VCCQ of the Intel flash die
internally. Therefore, BYTE# must be connected directly to VCC without using any
pull-up resistor.
Notes to Table 9:
(1) These pins can be driven to 12 V during production testing of the flash memory. Since the controller cannot tolerate the 12-V level, connections
from the controller to these pins are not made internal to the package. Instead they are available as two separate pins. You must connect the
two pins at the board level (for example, on the PCB, connect the C-WE# pin from controller to F-WE# pin from the flash memory).
(2) For more information, refer to the PCN0506: Addition of Intel Flash Memory As Source For EPC4, EPC8 and EPC16 Enhanced Configuration
Devices and Using the Intel Flash Memory-Based EPC4, EPC8 and EPC16 white paper.
Table 10. JTAG Interface Pins and Other Required Controller Pins (Part 1 of 2)
Pin Name
Pin Type
Description
TDI
Input
JTAG data input pin.
Connect this pin to VCC if the JTAG circuitry is not used.
TDO
Output
JTAG data output pin.
Do not connect this pin if the JTAG circuitry is not used (leave this pin floating).
TCK
Input
JTAG clock pin.
Connect this pin to GND if the JTAG circuitry is not used.
TMS
Input
JTAG mode select pin.
Connect this pin to VCC if the JTAG circuitry is not used.
PGM[2..0]
Input
These three input pins select one of the eight pages of configuration data to
configure the FPGAs in the system.
Connect these pins on the board to select the page specified in the Quartus II
software when generating the EPC device POF. PGM[2] is the MSB. The default
selection is page 0; PGM[2..0]=000. These pins must not be left floating.
Table 9. External Flash Interface Pins (Part 2 of 2)
Pin Name
Pin Type
Description


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