GMS90 Hynix Semiconductor, GMS90 Datasheet - Page 26

• Manufacturer Part Number: GMS90
• Description: 8-BIT SINGLE-CHIP MICROCONTROLLERS
• Manufacturer: Hynix Semiconductor

INTERRUPT SYSTEM
The GMS90 series provides 5 (4K bytes ROM version) or 6 (above 8K bytes ROM version) interrupt sources
with two priority levels. Figure 3 gives a general overview of the interrupt sources and illustrates the request and
control flags.
Figure 3. Interrupt Request Sources
22
T2EX
P1.1/
P3.2/
INT0
P3.3/
INT1
Timer 2 Overflow
TCON.0
TCON.2
T2CON.3
IT0
IT1
EXEN2
: Low level triggered
: Falling edge triggered
UART
Timer 0 Overflow
Timer 1 Overflow
T2CON.7
T2CON.6
SCON.0
SCON.1
EXF2
TF2
RI
TI
TCON.5
TCON.7
TCON.1
TCON.3
TF0
TF1
IE0
IE1
1
1
EX0
EX1
ET0
IE.1
ET1
IE.3
ET2
IE.5
IE.4
IE.0
IE.2
ES
IE.7
EA
PT0
PT1
PT2
PX0
PX1
IP.1
IP.3
IP.5
IP.4
IP.0
IP.2
PS
Dec. 1998 Ver 3.0
GMS90 Series
High
Priority
Low
Priority