AT89C51SND1C-ROTIL ATMEL Corporation, AT89C51SND1C-ROTIL Datasheet - Page 36

• Manufacturer Part Number: AT89C51SND1C-ROTIL
• Description: Single-Chip Microcontroller with MP3 Decoder and Man-Machine Interface
• Manufacturer: ATMEL Corporation

Figure 21. SPI Master Waveforms (SSCPHA = 0)
Note:
Figure 22. SPI Master Waveforms (SSCPHA = 1)
Note:
36
SS
SS
AT8xC51SND1C
handled by software using general purpose port pin.
handled by software using general purpose port pin.
(SSCPOL = 0)
(SSCPOL = 1)
(SSCPOL = 0)
(SSCPOL = 1)
(output)
(output)
(output)
(output)
(output)
(input)
(input)
(input)
(input)
(input)
SS1
SS1
MISO
MOSI
SCK
SCK
SCK
SCK
SO
SI
(1)
(1)
Port Data
T
T
SLCH
SLCL
1
T
SLOV
T
T
CHCX
CHCX
SLAVE MSB OUT
T
T
T
T
IVCH
IVCH
IVCL
IVCL
MSB IN
MSB IN
T
T
MSB OUT
T
T
CHCH
CHCH
CLOV
CHOV
T
T
T
T
T
T
CHIX
CLIX
CHIX
CLIX
CLCX
CLCX
BIT 6
BIT 6
T
T
T
T
CLOX
CHOX
CHOV
CLOV
BIT 6
BIT 6
T
T
SLAVE LSB OUT
T
T
CLCH
CHCL
CLCH
CHCL
LSB IN
LSB IN
LSB OUT
T
T
CHOX
CLOX
T
T
CHSH
CLSH
T
SHSL
T
Port Data
SHOX
4106F–8051–10/02