upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 126

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

126
Symbol
Symbol
PM3H
PM3L
R/W
R/W
(b) Port mode register 3 (PM3)
This is a 16-bit register used to specify the input mode/output mode.
This register can be read and written only in 16-bit units.
However, when using the higher 8 bits of the PM3 register as the PM3H register and the lower
8 bits as the PM3L register, PM3 can be read and written in 8-bit and 1-bit units.
PM37
R/W
R/W
15
1
7
PM3n
0
1
PM36
R/W
R/W
14
1
6
Output mode
Input mode
Figure 4-21: Port Mode Register 3 (PM3) Format
PM35
R/W
R/W
13
1
5
User’s Manual U16702EE3V2UD00
PM34
Chapter 4 Port Functions
R/W
R/W
12
1
4
I/O mode control (n = 0 to 8)
PM33
R/W
R/W
11
1
3
PM32
R/W
R/W
10
1
2
PM31
R/W
R/W
9
1
1
PM38
PM30
R/W
R/W
8
0
FFFFF427H
FFFFF426H
Address
Address
After reset
After reset
FFH
FFH