HD64336901G Renesas Technology, HD64336901G Datasheet - Page 140

• Manufacturer Part Number: HD64336901G
• Description: (HD64xxx Series) 16-BIT MICROCONTROLLER
• Manufacturer: Renesas Technology

9.1.1
PMR1 switches the functions of pins in port 1 and port 2.
Rev. 1.00, 11/03, page 112 of 376
Bit
7
6, 5
4
3, 2
1
0
Bit Name
IRQ3
IRQ0
TXD
Port Mode Register 1 (PMR1)
Initial
Value
0
All 0
0
All 0
0
0
R/W
R/W
R/W
R/W
Description
P17/IRQ3/TRGV Pin Function Switch
Selects whether pin P17/IRQ3/TRGV is used as P17 or
as IRQ3/TRGV.
0: General I/O port
1: IRQ3/TRGV input pin
Reserved
These bits are always read as 0.
P14/IRQ0 Pin Function Switch
Selects whether pin P14/IRQ0 is used as P14 or as
IRQ0.
0: General I/O port
1: IRQ0 input pin
Reserved
These bits are always read as 0.
P22/TXD Pin Function Switch
Selects whether pin P22/TXD is used as P22 or as TXD.
0: General I/O port
1: TXD output pin
Reserved
This bit is always read as 0.