em78f644nso28s ELAN Microelectronics Corp, em78f644nso28s Datasheet - Page 115

• Manufacturer Part Number: em78f644nso28s
• Description: Flash Series 8-bit Microcontroller
• Manufacturer: ELAN Microelectronics Corp

Product Specification (V1.0) 05.05.2010
(This specification is subject to change without further notice)
6.7.4 SPI Mode Timing
The SCK edge is selected by programming the CES bit. The waveform shown in the
above figure (Figure 17a) is applicable regardless of whether the EM78F648N/644N
/548N/544N is in Master or Slave mode with /SS disabled. However, the waveform in
the figure below (Figure 17b) can only be implemented in Slave mode with /SS
enabled.
Figure 6-17a SPI Mode with /SS Disabled Timing Diagram
Figure 6-17b SPI Mode with /SS Enabled Timing Diagram
EM78F648/644/642/641/548/544/542/541N
8-Bit Microcontroller
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