W55P241 Datasheet, PDF (11/32 Pages) List of Unclassifed Manufacturers – I/O device usable with many different microprocessors through SPI interface

W55P241
B
Pad
CMOS output
A=0, D=1
PIN
(bit)
B
Pad
Inverted CMOS output
A=1, D=1
PIN
Figure 6 Normal and inverted CMOS output
5.2.5 Inverted CMOS Output
When Attribute bit = 1 and Direction bit = 1, the pad is in inverted CMOS output mode and the Buffer
bit determines pad state. Unlike CMOS output mode, pad state is indirectly controlled by the Buffer bit
in inverted CMOS output mode. If Buffer bit = 0, the pad will be set to “1.” If Buffer bit = 1, the pad will
be set to “0.” Pin bit directly indicates pad status.
5.2.6 Inverted Open-Drain NMOS Output
When Attribute bit = 0 and Buffer bit = 0, the pad is in inverted open-drain NMOS output mode. If
Direction bit is 0, the pad will be floating. In this case, the pad functions like floating input. If Direction
bit is 1, the pad will be set to “0.” Pin bit directly indicates pad status.
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