GMS81C5108 Datasheet, PDF (51/102 Pages) Hynix Semiconductor – HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS

GMS81C5108
16BIT CAP0 CAP1 PWME T0CK[2:0] T1CK[1:0] PWMO
Timer 0
Timer 1
0
0
0
0
XXX
XX
0 8 Bit Timer
8 Bit Timer
0
0
1
0
111
XX
0 8 Bit Event Counter 8 Bit Capture
0
1
0
0
XXX
XX
1 8 Bit Capture
8 Bit Compare Output
0
0
0
1
XXX
XX
1 8 Bit Timer/Counter 10 Bit PWM
1
0
0
0
XXX
11
0 16 Bit Timer
1
0
0
0
111
11
0 16 Bit Event Counter
1
1
X¹
0
XXX
11
0 16 Bit Capture
1
0
0
0
XXX
11
1 16 Bit Compare Output
1. X: The value “0” or “1” corresponding your operation.
Table 12-1 Operating Modes of Timer 0 and Timer 1
12.1 8-Bit Timer/Counter Mode
The GMS81C5108 has two 8-bit Timer/Counters, Timer 0,
Timer 1, as shown in Figure 12-3.
The “timer” or “counter” function is selected by mode reg-
isters TMx as shown in Figure 12-1 and Table 12-1. To use
as an 8-bit timer/counter mode, bit CAP0 of TM0 is
cleared to “0” and bits 16BIT of TM1 should be cleared to
“0” (Table 12-1 ).
TM0
TM1
-
-
CAP0 T0CK2 T0CK1 T0CK0 T0CN T0ST
ADDRESS : 0E0_H
RESET VALUE : --000000_B
0
X
X
X
X
X
POL
16BIT PWME CAP1 T1CK1 T1CK0 T1CN
T1ST
ADDRESS : 0E2_H
RESET VALUE : 00000000_B
X
0
0
0
X
X
X
X
X : The value “0” or “1” corresponding your operation.
Edge Detector
EC0
X_IN
0X
SX_IN
1X
2
SCMR[1:0]
÷2
÷4
÷8
÷ 32
÷ 128
÷ 512
÷ 1024
T0CK[2:0]
MUX
T1CK[1:0]
÷1
÷2
MUX
÷8
1
T0CN
1
T1CN
T0ST
0 : Stop
1 : Clear and Start
T0 (8-bit)
CLEAR
COMPARATOR
TDR0 (8-bit)
T1ST
0 : Stop
1 : Clear and Start
CLEAR
F/F
T1 (8-bit)
COMPARATOR
TDR1 (8-bit)
T1IF
T0IF
TIMER 0
INTERRUPT
[PMR.6]
PWMO
COMPO PIN (R31)
TIMER 1
INTERRUPT
Figure 12-3 Block Diagram of Timer/Event Counter
48
JUNE 2001 Ver 1.0