ADLINK Technology PCI-MPG24 Uživatelský manuál stáhnout pdf (Strana 138)

128 Reference Manual

Table 6-10: SPI Control Register Definition

Return Value

HRESULT

6. IAccessFunc::SPI_ReadRegister

The SPI_ReadRegister method reads a single SPI register.

Syntax

HRESULT SPI_ReadRegister(

int OpLen,

unsigned char OpCode,

int AddrLen,

unsigned short RegAddr,

int DataLen,

unsigned short *pRegData,

int SPIMode

);

2 bst_rw RW 1’b0

1 = burst R/W mode (burst R for 3-wire

device is not supported, the read data

of 3-wire device is half spi clock cycle

later than that of spi device);

0 = single R/W mode;

1:0 spi_mode RW 2’h0

2’h0 = spi mode 0;

2’h1 = spi mode 1;

2’h2 = spi mode 2;

2’h3 = spi mode 3;

Note: for 3-wire, mode 0 should be

used.

Bit Name Type

Default

Value

Description

1 2 ... 133 134 135 136 137 138 139 140 141 142 143 ... 159 160

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ADLINK Technology PCI-MPG24 Uživatelský manuál Strana 138