Panasonic MN103S Timer 1 Binary Counter TM1BC 0x0000A151, Timer 1 Mode Register TM1MD 0x0000A141

Chapter 3

Microcomputer Basics 1

Timer 1 Binary Counter (TM1BC: 0x0000A151)

bp

7

6

5

4

3

2

1

0

Flag name	Description
TM1BC7
TM1BC6
TM1BC5
TM1BC4	Timer 1 binary counter
TM1BC3
TM1BC2
TM1BC1
TM1BC0

Timer 1 Mode Register (TM1MD: 0x0000A141)

bp	Flag name	Description
		Timer operation enable
7	TM1CNE	0: Operation disabled
		1: Operation enabled
		Timer initialization
		0: Normal operation
6	TM1LDE	1: Initialization
		TM1BR value is loaded into TM1BC.
		Timer pulse output 1 is reset to low level.
5-3		
		Count source selection
		000: IOCLK
	TM1CK2	001: IOCLK/8
		010: IOCLK/32
2-0	TM1CK1	011: Cascading with Timer 0
	TM1CK0	100: Timer 0 underflow
		101: Setting not available
		110: Timer 2 underflow
		111: TM1IO pin input

Port 3 I/O Control Register (P3DIR: 0x0000A023)

bp

7

6-0

Flag name	Description
	
P36D
P35D
P34D	P36 to P30 I/O control
P33D	0: Input mode
P32D	1: Output mode
P31D
P30D

8-bit timer operation III−39