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CHAPTER 4 I/O PORTS
4.6 Port 6
Port 6 is a general-purpose I/O port.
This section describes the port function when operating as general-purpose I/O port.
This section also describes the structure, pins, the block diagram of pins, and
associated registers of port 6.
■ Structure of Port 6
Port 6 comprises the following four elements:
• General-purpose I/O pins (input pins P61-P60 for MB89F202/F202RA)
• Port 6 data register (PDR6)
• Port 6 data direction register (DDR6, not used in MB89F202/F202RA)
• Port 6 pull-up setting register (PUL6)
■
Pins of Port 6
Port 6 has 2 I/O pins of CMOS input type (they are input only pins for MB89F202/F202RA).
Table 4.6-1 lists the pins of port 6.
*: P61 and P60 are general-purpose input port for MB89F202/F202RA.
For circuit type, see Section "1.7 Pin Functions Description " and "1.8 I/O Circuit Types ".
Table 4.6-1 Pins of Port 6
Port name Pin name Function
Peripherals for
which a pin may
serve
Input and output form
Circuit
type
Input Output
Port 6
P60
P60 general-
purpose I/O*
-CMOS -H / E
P61
P61 general-
purpose I/O*
-CMOS -H / E