Fig. 5.14.1 configuration of interrupt circuit, Epson – Epson S1C88650 User Manual

Page 136

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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

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