Visible to Intel only — GUID: xll1509013659857
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A.4. FPGA Configuration
JTAG
The JTAG topology of the board is shown in the figure below. An on-board Intel® FPGA Download Cable is implemented with the MAX® 10. It is in the form of a micro-USB type-B connector (J9).
The system MAX® 10 device itself can be configured through on-board USB port or an external Intel® FPGA Download Cable II header. the 2x5 header for MAX® 10 is not mounted by default.
A secondary MAX® 10 device is used for PFL configuration mode. This CFG MAX® 10 is configured with on-board USB port.
The Cyclone® 10 GX FPGA device is configured with on-board USB port or an external Intel® FPGA Download Cable II header.
The FMC interface also has a JTAG interface. The FMC JTAG can also be included into the JTAG chain.
The Cyclone® 10 GX device JTAG and FMC JTAG can be put included or isolated from the JTAG chain by setting a DIP switch S5.
Switch | Signal | Function |
---|---|---|
S5.1 | FMC_JTAGEN | ON - Disable JTAG |
S5.2 | C10_JTAGEN | ON - Disable JTAG |
Configuration
The Cyclone® 10 GX FPGA device can be configured using different modes. Mode selection can be done using DIP switch S1.
Configuration Scheme | VCCPGM (V) | Power-On Reset Delay | Valid MSEL [2:0] |
---|---|---|---|
JTAG-based Configuration | ----- | ------ | Use any valid MSEL pin settings given below |
AS (x1 and x4) | 1.8 | Fast | 010 |
Standard | 011 | ||
PS and FPP (x8, x16, x32) | 1.2 / 1.5 / 1.8 | Fast | 000 |
Standard | 001 |
Switch | Signal | Note |
---|---|---|
S1.1 | C10_MSEL0 | MSEL2 is tied to GND ON - '0' |
S1.2 | C10_MSEL1 |
The Cyclone® 10 GX FPGA device is configured with two modes: ASx4 or FPP x16. The AS x4 mode uses an MT25Q (for Power Solution 2)/ EPCQ-L 1024 (for Power Solution 1) to store the image. A dedicated MAX® 10 device is used to implement PFL. It interfaces with two pieces of x16 parallel NOR flash devices to get a x32 bus width. The highest density is 2 Gb. The flash interface works at 3.3 V and various NOR flashes from different vendors can be used with this board.
Micron MT28EW01GABA1LPC-0SITES is installed in manufacturing by default. 2 Gb is provided with the board.
For the Cyclone® 10 GX FPGA device, the image size is less than 85 Mb. Multiple images can be stored and selected by the user. The image to be used can be selected with a group of Push Buttons and LEDs.
- Cycling images by pushing button S7
- CFG MAX® 10 device displays current number to be used with LEDs D16-D18
- Initiate the reconfiguration by pushing button S12
Switch / LED | Signal | Note |
---|---|---|
S7 | PGM_SEL | Select program |
S12 | SYS_CONFIG_PB | Reconfigure |
D16 | PGM_LED0 | PGM_LED [2:0] indicates the program to be used |
D17 | PGM_LED1 | |
D18 | PGM_LED2 |
Side Bus
A group of Side Bus signals are defined between MAX® 10 and Cyclone® 10 GX FPGA device to provide a higher speed access through on-board Intel® FPGA Download Cable. This interface is reserved in hardware.