power up in the reset condition, selecting the normal SK
signal provided the SK Idle Polarity remains LOW.
20.0 MICROWIRE/PLUS (Continued)
mapped into the G6 configuration bit. The SKSEL flag will
TABLE 39. MICROWIRE/PLUS Shift Clock Polarity and Sample/Shift Phase
Port G
G6 (SKSEL)
SO Clocked Out On:
SI Sampled On:
SK Idle Phase
SK Phase
G5 Data
Config. Bit
Bit
0
Normal
Alternate
Alternate
Normal
0
1
0
1
SK Falling Edge
SK Rising Edge
SK Rising Edge
SK Falling Edge
SK Rising Edge
SK Falling Edge
SK Falling Edge
SK Rising Edge
Low
Low
High
High
0
1
1
20006336
FIGURE 35. MICROWIRE/PLUS SPI Mode Interface Timing, Normal SK Mode, SK Idle Phase being Low
20006337
FIGURE 36. MICROWIRE/PLUS SPI Mode Interface Timing, Alternate SK Mode, SK Idle Phase being Low
20006338
FIGURE 37. MICROWIRE/PLUS SPI Mode Interface Timing, Normal SK Mode, SK Idle Phase being High
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