GMS84512 Datasheet, PDF (81/123 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCOMPUTER

GMS 84512 / 84524
l Interrupt Mode
¨Í Mode 0 ( Priority by H/ W )
OSDR£¾ INT1R£¾INT2R£¾ T0R£¾T2R£¾1mR£¾VSYNCR£¾T1R£¾T3R£¾
INT3R£¾WDTR£¾BITR£¾SR
¨Î Mode 1 (Selection by IP3 ¡- iP0)
TABLE 4.1.2 Selection of Interrupt by IP3 ¡- IP0
IP3 IP2 IP1 IP0
0 0 0 0 _¡ª
Selection Interrupt
0 0 0 1 OSDR On Screen Display
0 0 1 0 INT1R External Interrupt 1
0 0 1 1 INT2R External Interrupt 2
0 1 0 0 T0R Timer 0
0 1 0 1 T2R Timer 2
0 1 1 0 _{1msR 1§Â Interrupt}
0 1 1 1 VSYNCR External V-sync Interrupt
1 0 0 0 T1R Timer 1
1 0 0 1 T3R Timer 3
1 0 1 0 INT3R External Interrupt 3
1 0 1 1 WDTR Watch Dog Timer
1 1 0 0 BITR Basic Interval Timer
1 1 0 1 SR
Serial I/O
1 1 1 0 _¡ª
1 1 1 1 _¡ª
l Interrupt Accept Timing
System Clock
Instruction
Fetch
1 Cycles
0¡-12 Cycles
A command before
Interrupt
8 Cycles
Interrupt Process
Step
Interruptroutine
Int.request Sampling
Interrupt Overhead : 9¡-21
Cycles
FIG. 4.1.2 Interrupt Accept Timing
4-5