upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 379

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

14.2.8 Port 9
Port 9
Port 9 is a 7-bit I/O port for which I/O settings can be controlled in 1-bit units.
Remark
Port 9 includes the following alternate functions.
Note Software pull-up function
After reset:
P9
Pin Name
In input mode:
In output mode:
00H
P90
P91
P92
P93
P94
P95
P96
P9n
0
1
7
0
R/W
Output 0
Output 1
DSTB/RD
HLDRQ
LBEN/WRL
UBEN
R/W/WRH
ASTB
HLDAK
P96
6
When port 9 (P9) is read, the pin levels at that time are read. Writing to P9
writes the values to that register. This does not affect the input pins.
When port 9 (P9) is read, the P9 values are read.
writes the values to that register, and those values are immediately output.
Alternate Function
Table 14-9. Alternate Functions of Port 9
CHAPTER 14 PORT FUNCTION
P95
5
User’s Manual U12768EJ4V1UD
Control of Output Data (in Output Mode) (n = 0 to 6)
Address: FFFFF012H
P94
4
I/O
I/O
P93
3
PULL
No
Note
P92
2
Remark
P91
1
−
Writing to P9
P90
0
379