SPMI

The Gowin SPMI primitive is a two-wire serial interface that can be used to dynamically control the internal power supply of the on-chip system. It supports devices such as the LittleBee GW1NZ, GW1NZ-1, and GW1NZ-1C, and has 16 ports for communication with other components.

This device is not yet supported in Apicula

Ports

Port	Size	Direction
ADDRI	4	input
ADDRO	4	output
CA	1	input
CE	1	input
CLK	1	input
CLKEXT	1	input
CMD	4	output
DATAI	8	input
DATAO	8	output
ENEXT	1	input
LOCRESET	1	input
PA	1	input
RESETN	1	input
SA	1	input
SCLK	1	inout
SDATA	1	inout
STATE	16	output

Parameters

Parameter	Default Value
CLK_FREQ	0 (0b0000000)
FUNCTION_CTRL	0 (0b0000000)
MSID_CLKSEL	0 (0b0000000)
RESPOND_DELAY	0 (0b0000)
SCLK_LOW_PERIOD	0 (0b0000000)
SCLK_NORMAL_PERIOD	0 (0b0000000)
SHUTDOWN_BY_ENABLE	0 (0b0)

Verilog Instantiation

SPMI #(
    .CLK_FREQ(CLK_FREQ),
    .FUNCTION_CTRL(FUNCTION_CTRL),
    .MSID_CLKSEL(MSID_CLKSEL),
    .RESPOND_DELAY(RESPOND_DELAY),
    .SCLK_LOW_PERIOD(SCLK_LOW_PERIOD),
    .SCLK_NORMAL_PERIOD(SCLK_NORMAL_PERIOD),
    .SHUTDOWN_BY_ENABLE(SHUTDOWN_BY_ENABLE)
) spmi_inst (
    .ADDRI(ADDRI),
    .ADDRO(ADDRO),
    .CA(CA),
    .CE(CE),
    .CLK(CLK),
    .CLKEXT(CLKEXT),
    .CMD(CMD),
    .DATAI(DATAI),
    .DATAO(DATAO),
    .ENEXT(ENEXT),
    .LOCRESET(LOCRESET),
    .PA(PA),
    .RESETN(RESETN),
    .SA(SA),
    .SCLK(SCLK),
    .SDATA(SDATA),
    .STATE(STATE)
);