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128 EPSON S1C88650 TECHNICAL MANUAL
5 PERIPHERAL CIRCUITS AND THEIR OPERATION (Interrupt and Standby Status)
Fig. 5.14.1 Configuration of interrupt circuit
FTM32
ETM32
32 Hz
FTM8
ETM8
8 Hz
FTM2
ETM2
2 Hz
FTM1
ETM1
1 Hz
Clock timer
FSERR
ESERR
Error
FSREC
ESREC
Receive
FSTRA
ESTRA
Transmit
Serial
interface
FTU0
ETU0
Underflow
FTC0
ETC0
Compare
match
Program-
mable
timer 0
FTU1
ETU1
Underflow
FTC1
ETC1
Compare
match
Program-
mable
timer 1
FK00
EK00
K00
FK01
EK01
K01
FK02
EK02
K02
FK03
EK03
K03
FK04
EK04
K04
FK05
EK05
K05
FK06
EK06
K06
FK07
EK07
K07
Input port
PTM0
PTM1
PSIF0
PSIF1
PK00
PK01
PPT0
PPT1
Interrupt vector
address generation
circuit
NMI
IRQ3
IRQ2
IRQ1
Data bus
Vector
address
FTU2
ETU2
Underflow
FTC2
ETC2
Compare
match
Program-
mable
timer 2
FTU3
ETU3
Underflow
FTC3
ETC3
Compare
match
Program-
mable
timer 3
PPT2
PPT3
FTU4
ETU4
Underflow
FTC4
ETC4
Compare
match
Program-
mable
timer 4
FTU5
ETU5
Underflow
FTC5
ETC5
Compare
match
Program-
mable
timer 5
PPT4
PPT5
FTU6
ETU6
Underflow
FTC6
ETC6
Compare
match
Program-
mable
timer 6
FTU7
ETU7
Underflow
FTC7
ETC7
Compare
match
Program-
mable
timer 7
PPT6
PPT7
Interrupt priority
level judgement
circuit
Interrupt factor flag
Interrupt enable register
Interrupt priority register