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6 control of interrupt – Epson S1C88650 User Manual

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S1C88650 TECHNICAL MANUAL

EPSON

133

5 PERIPHERAL CIRCUITS AND THEIR OPERATION (Interrupt and Standby Status)

5.14.6 Control of interrupt

Table 5.14.6.1 shows the interrupt control bits.

Table 5.14.6.1(a) Interrupt control bits

SR R/W

Address Bit

Name

Function

Comment

1

0

00FF20 D7

D6

D5

D4

D3

D2

D1

D0

PK01

PK00

PSIF1

PSIF0

PTM1

PTM0

Constantly "0" when

being read

0

0

0

R/W

R/W

R/W

K00–K07 interrupt priority register

Serial interface interrupt priority register

Clock timer interrupt priority register

00FF21 D7

D6

D5

D4

D3

D2

D1

D0

PPT3

PPT2

PPT1

PPT0

Constantly "0" when

being read

Constantly "0" when

being read

PPT3
PPT1

1
1
0
0

PPT2
PPT0

1
0
1
0

Programmable timer 3–2 interrupt

priority register

Programmable timer 1–0 interrupt

priority register

Priority

level

PK01

PSIF1

1
1
0
0

Priority

level

PK00

PSIF0

1
0
1
0

Level 3
Level 2
Level 1
Level 0

Level 3
Level 2
Level 1
Level 0

0

0

R/W

R/W

PTM1

1
1
0
0

Priority level

PTM0

1
0
1
0

Level 3
Level 2
Level 1
Level 0

00FF2A D7

D6

D5

D4

D3

D2

D1

D0

PPT7

PPT6

PPT5

PPT4

Constantly "0" when

being read

0

0

R/W

R/W

PPT7
PPT5

1
1
0
0

PPT6
PPT4

1
0
1
0

Priority

level

Level 3
Level 2
Level 1
Level 0

00FF22 D7

D6

D5

D4

D3

D2

D1

D0

ETM32

ETM8

ETM2

ETM1

Clock timer 32 Hz interrupt enable register

Clock timer 8 Hz interrupt enable register

Clock timer 2 Hz interrupt enable register

Clock timer 1 Hz interrupt enable register

0

R/W

Interrupt

enable

Interrupt

disable

Constantly "0" when

being read

Programmable timer 7–6 interrupt

priority register

Programmable timer 5–4 interrupt

priority register

D7

D6

D5

D4

D3

D2

D1

D0

00FF23

ESERR

ESREC

ESTRA

Serial I/F (error) interrupt enable register

Serial I/F (receiving) interrupt enable register

Serial I/F (transmitting) interrupt enable register

0

Interrupt

enable

Interrupt

disable

Constantly "0" when

being read

R/W