GOWIN DK START GW1NS-LV4CQN48C7I6 V1.1, Схематическое руководство, Страница: 10 / 16

GW1NS & GW1NSR & GW1NSE & GW1NSER Series of FPGA
Products Schematic Manual
UG292-1.0E
www.gowinsemi.com.en 10
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Figure 5 Configure Dual-purpose Pin
Dual- purpose Pin

SSPI: As a GPIO, SSPI can be used as input or output;

MSPI: As a GPIO, MSPI can be used as input or output;

RECONFIG_N GPIO can only be used as an output. Set the initial
value of RECONFIG_N as high when multiplexing it.

READY: As a GPIO, READY can be used as input or output. As an
input GPIO, the initial value of READY should be 1. Otherwise, the
FPGA will fail to configure;

As a GPIO, DONE can be used as an input or output. If DONE is used
as an input GPIO, the initial value of DONE should be 1. Otherwise, the
FPGA will fail to enter the user mode after configuring;

As a GPIO, JTAG can be used as an input or output;

As a GPIO, JTAGSEL_N can be used as an input or output.

As a GPIO, JTAG can be used as an input or output. You multiplex
MODE pin, the correct value is needed to provided during configuration
(power-on or low-level pulse triggers RECONFIG_N). Up to three pins
can be multiplexed in MODE. Unpackaged pins are grounded internally.
Please refer to pinout manuasl for details. For the MODE value
corresponding to different configuration modes, please refer to the
corresponding device manual.
Note!
If the number of I/O ports is sufficient, use non-multiplexed pins first.