
57
AT/TSC8x251G2D
4135F–8051–11/06
Waveforms
Figure 19.
SPI Master Waveforms (SSCPHA = 0)
Note:
1. SS# handled by software.
Figure 20.
SPI Master Waveforms (SSCPHA = 1)
Note:
1. Not Defined but normally MSB of character just received.
MISO
(input)
SCK
(SSCPOL = 0)
(output)
SS#(1)
(output)
SCK
(SSCPOL = 1)
(output)
MOSI
(output)
TCHCH
TCLCX
TCHCX
TIVCL TCLIX
TCHIX
TIVCH
TCHOV
TCLOV
TCHOX
TCLOX
MSB IN
BIT 6
LSB IN
MSB OUT
Port Data
LSB OUT
Port Data
BIT 6
TCHCL
TCLCH
MISO
(input)
SCK
(SSCPOL = 0)
(output)
SS#(1)
(output)
SCK
(SSCPOL = 1)
(output)
MOSI
(output)
TCHCH
TCLCX
TCHCX
TIVCL TCLIX
TCHIX
TIVCH
TCHOV
TCLOV
TCHOX
TCLOX
MSB IN
BIT 6
LSB IN
MSB OUT
Port Data
LSB OUT
Port Data
BIT 6
TCHCL
TCLCH