Datasheet

176
4337K–USB–04/08
AT89C5130A/31A-M
Figure 27-9. SPI Master Waveforms (SSCPHA= 0)
Note: 1. SS handled by software using general purpose port pin.
Figure 27-10. SPI Master Waveforms (SSCPHA= 1)
SS handled by software using general purpose port pin.
MOSI
(input)
SCK
(CPOL= 0)
(output)
SS
(output)
SCK
(CPOL= 1)
(output)
MISO
(output)
T
CHCH
T
CLCX
T
CHCX
T
IVCL
T
CLIX
T
CHIX
T
IVCH
T
CHOV
T
CLOV
T
CHOX
T
CLOX
MSB IN BIT 6 LSB IN
MSB OUTPort Data LSB OUT Port DataBIT 6
T
CHCL
T
CLCH
MOSI
(input)
SCK
(CPOL= 0)
(output)
SS
(1)
(output)
SCK
(CPOL= 1)
(output)
MISO
(output)
T
CHCH
T
CLCX
T
CHCX
T
IVCL
T
CLIX
T
CHIX
T
IVCH
T
CHOV
T
CLOV
T
CHOX
T
CLOX
MSB IN BIT 6 LSB IN
MSB OUTPort Data LSB OUT Port DataBIT 6
T
CHCL
T
CLCH