UPD78F0138 NEC, UPD78F0138 Datasheet - Page 104

• Manufacturer Part Number: UPD78F0138
• Description: (UPD78xxxx) 8-Bit Single-Chip Microcontrollers
• Manufacturer: NEC

104
WR
WR
WR
PU3:
PM3:
RD:
WR××: Write signal
RD
PORT
PU
PM
Pull-up resistor option register 3
Port mode register 3
Read signal
Output latch
Alternate
Alternate
function
function
PM33
PU33
(P33)
PM3
PU3
Figure 4-13. Block Diagram of P33
CHAPTER 4 PORT FUNCTIONS
User’s Manual U16228EJ2V0UD
EV
DD
P-ch
P33/INTP4/TI51/TO51