upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 367

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

14.2.4 Port 3
in 1-bit units (software pull-up function).
eliminator.
Port 3
Port 3 is an 8-bit I/O port for which I/O settings can be controlled in 1-bit units. A pull-up resistor can be connected
When P36 and P37 are used as the TI4 and TI5 pins, noise is eliminated from these pins by a digital noise
Remark
Port 3 includes the following alternate functions.
Note Software pull-up function
After reset:
P3
Pin Name
In input mode:
In output mode:
P30
P31
P32
P33
P34
P35
P36
P37
00H
P3n
0
1
P37
7
Output 0
Output 1
TI00
TI01
TI10
TI11
TO0/A13
TO1/A14
TI4/TO4/A15
TI5/TO5
R/W
P36
6
When port 3 (P3) is read, the pin levels at that time are read. Writing to P3
writes the values to that register. This does not affect the input pins.
When port 3 (P3) is read, the P3 values are read.
writes the values to that register, and those values are immediately output.
Alternate Function
Table 14-5. Alternate Functions of Port 3
CHAPTER 14 PORT FUNCTION
P35
User’s Manual U12768EJ4V1UD
5
Control of Output Data (in Output Mode) (n = 0 to 7)
Address: FFFFF006H
P34
4
I/O
I/O
P33
PULL
Yes
3
Note
Digital noise elimination
P32
2
Remark
P31
1
−
Writing to P3
P30
0
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