GMS87C4060 Datasheet, PDF (42/102 Pages) Hynix Semiconductor – 8-BIT SINGLE-CHIP MICROCONTROLLERS

GMS81C4040/87C4060
PRELIMINARY
.
TM2
TDR2
Internal bus line
TDR3
T2CN
EC2
PS2
PS4 ^MUX
PS6
NC
EC3
PS2 ^MUX
PS4
Timer 2
8bit Comparator
T2IF
Clock
T2ST
Clear
T3ST
Timer 3
8bit Comparator
T3IF
Clock
Clear
Figure 11-6 Simplified Block Diagram of 8bit Timer/Event Counter 2,3
TDR2
clear & start
stop
~~
disable ^enable
~~
up-count
Timer 2 (T2IF)
Interrupt
T2ST
Start & Stop
T2CN
Control count
Occur interrupt
T2ST = 1
T2ST = 0
Occur interrupt
T2CN = 0
T2CN = 1
Figure 11-7 Count Example of Timer / Event counter
TIME
38
PRELIMINARY
Nov. 1999 Ver 1.0