Mitsubishi 32172 User Manual page 232

8
P46
P61 - P63
P225
Note 1: Although P46, P61-P63, and P225 serve as external bus interface control signal pins during external
extended and processor modes, their functional description in this block diagram is omitted.
P64(SBI)
P71(WAIT)
Note 2: denotes a pin.
Note 3:
Figure 8.4.2 Port Peripheral Circuit Diagram (2)
INPUT/OUTPUT PORTS AND PIN FUNCTIONS
Data bus
(DB0 - DB15)
Data bus
(DB0 - DB15)
SBI
Data bus
(DB0 - DB15)
WAIT
denotes a parasitic diode. Make sure the voltage applied to each port will not exceed VCCE.
Direction register
Port output
latch
Input function enable
RD
Direction register
Port output
latch
Operation mode
register
Input function enable
8-32
8.4 Port Peripheral Circuits
Rev.1.0