Altera Cyclone V SoC Development Board Instrukcja Użytkownika Pobierz pdf (Strona 27)

Chapter 2: Board Components 2–19

Setup Elements

November 2013 Altera Corporation Cyclone V SoC Development Board

Reference Manual

HPS Jumpers

The HPS jumpers define the bootstrap options for the HPS—boot source, mode, HPS

clocks settings, POR mode and peripherals selection.

Table 2–11 lists the jumper settings and its descriptions.

CPU Reset Push Button

The CPU reset push button,

CPU_RESETn

(S10), is an input to the Cyclone V HPS pin

and is an open-drain I/O from the MAX V CPLD System Controller. This push button

is the default reset for both the HPS and CPLD logic. The MAX II CPLD 5M2210 also

drives this push button during power-on-reset (POR).

Table 2–11. HPS Jumpers

Board

Reference

Schematic Signal

Name

Description

J28, J29, J30

BOOTSEL[0:2]

Selects the boot mode and source for the HPS.

■ 0x0—Reserved

■ 0x1—FPGA (HPS-to-FPGA bridge)

■ 0x2—1.8 V NAND flash

■ 0x3—3.0 V NAND flash

■ 0x4—1.8 V SD/MMC flash memory with external

transceiver

■ 0x5—3.0 V SD/MMC flash memory with internal

transceiver

■ 0x6—1.8 V SPI or quad SPI flash memory

■ 0x7—3.0 V SPI or quad SPI flash memory

J26, J27

CLKSEL[0:1]

Selects the HPS clock settings. The actual clock settings are

also dependent on

BOOTSEL[0:2]

J13

OSC1_CLK_SEL

Selects the source of OSC1 clock.

■ ON: Select on-board clock generator.

■ OFF: Select external source via SMA connector.

J31

LTC_EXP_SPI_I2C

Selects the LTC expansion header interface type.

■ ON: Select SPI.

■ OFF: Select I

JTAG_HPS_SEL

HPS in JTAG chain or only connect HPS to MICTOR.

Selects the source to control the HPS.

■ ON: Select on-board USB-Blaster II as the JTAG master.

■ OFF: Select MICTOR-based JTAG master, such as

DSTREAM or Lauterbach programming cables. Also, sets

SW4.1 to ON to remove the on-board USB Blaster II from

driving the HPS JTAG input port in this mode.

JTAG_SEL

Selects the source of the JTAG chain.

■ ON: Select on-board USB-Blaster II as the source.

■ OFF: Select MICTOR as the source.

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