Rainbow-electronics AT89C5132 Manual do Utilizador descarregar pdf (Página 148)

148

AT8xC5132

4173A–8051–08/02

Figure 125. SPI Master Waveforms (SSCPHA = 0)

Note: SS handled by software using general purpose port pin.

Figure 126. SPI Master Waveforms (SSCPHA = 1)

Note: SS handled by software using general purpose port pin.

CHCL

CLCH

MOSI

(input)

SCK

(SSCPOL = 0)

(input)

SS#1

(input)

SCK

(SSCPOL = 1)

(input)

MISO

(output)

CHCH

CLCX

CHCX

IVCL

CLIX

CHIX

IVCH

CLOV

CHOV

CLOX

CHOX

MSB IN

BIT 6 LSB IN

SLAVE MSB OUT SLAVE LSB OUTBIT 6

SLOV

SHOX

SHSL

CHSH

CLSH

SLCL

SLCH

(input)

SCK

(SSCPOL = 0)

(output)

SS#1

(output)

SCK

(SSCPOL = 1)

(output)

CHCH

CLCX

CHCX

IVCL

CLIX

CHIX

IVCH

CHOV

CLOV

CHOX

CLOX

MSB IN BIT 6 LSB IN

MSB OUTPort Data LSB OUT Port DataBIT 6

CHCL

CLCH

1 2 ... 143 144 145 146 147 148 149 150 151 152 153 ... 161 162

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