FUJITSU Semiconductor Controller MB89950/950A User Manual
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CHAPTER 4 I/O PORTS
■ Port 3 register
The port 3 register consists of PDR3. Each bit in the register has a one-to-one relationship with a port 3 pin.
Table 4.5-2 "Correspondence between pin and register for port 3" shows the correspondence between the
pins and register for port 3.
Table 4.5-2 Correspondence between pin and register for port 3
Port
Correspondence between register bit and pin
Port 3
PDR3
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Corresponding pin
--
--
--
--
P33
P32
P31
P30