
GMS81508/16
21
2.6. TIMER
The GMS81508/16 has four multi-functional 8-bit binary timers(Timer0~Timer3).
Timer0 (or Timer2) is can be used as a 16-bit timer/event counter with Timer1(or Timer3). The
Timer0-1 and Timer2-3 have same functions and structures. So, We will explains about Timer0 and
Timer1 only.
Operation Mode of Timer
Timer0,Timer2
Timer1,Timer3
-. 8-bit Interval Timer
-. 8-bit Event Counter
-. 8-bit input capture
-. 8-bit Interval Timer
-. 8-bit rectangular pulse
output
-. 16-bit Interval Timer
-. 16-bit Event Counter
-. 8-bit rectangular pulse output
ck
PS6
PS4
PS2
T0CN
T1ST
INT0
CAP0
T0ST
PS6
PS4
PS2
2
EC0
TDR0
Internal Data Bus
16bit Mode
16bit Mode
MUX
8
TM0
7
1 0
3 2
5 4
7 6
TDR1
IFT0
INTR0
T1O
IFT1
8
8
Comparator 0
8
Comparator 1
Data Reg. 1
Data Reg. 0
8
T 0
8
T 1
8
8
Clea
ck
Clea
1
MUX
0
0
MUX
1
F / F
EDGE
1
MUX
0
MUX
2