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Renesas H8S/2111B User Manual

Page 434

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Rev. 1.00, 05/04, page 400 of 544

Table 15.4 Fast A20 Gate Output Signals

HA0 Data/Command

Internal CPU
Interrupt Flag
(IBF)

GA20
(P81)

Remarks

1 H'D1

command

0

Q

0 1

data*

1

0

1

1

H'FF command

0

Q (1)

Turn-on sequence

1 H'D1

command

0

Q

0 0

data*

2

0

0

1

H'FF command

0

Q (0)

Turn-off sequence

1 H'D1

command

0

Q

0 1

data*

1

0

1

1/0

Command other than H'FF and H'D1

1

Q (1)

Turn-on sequence
(abbreviated form)

1 H'D1

command

0

Q

0 0

data*

2

0

0

1/0

Command other than H'FF and H'D1

1

Q (0)

Turn-off sequence
(abbreviated form)

1 H'D1

command

0

Q

1

Command other than H'D1

1

Q

Cancelled sequence

1 H'D1

command

0

Q

1 H'D1

command

0

Q

Retriggered
sequence

1 H'D1

command

0

Q

0 Any

data

0

1/0

1

H'D1 command

0

Q (1/0)

Consecutively
executed sequences

Notes: 1. Arbitrary data with bit 1 set to 1.

2. Arbitrary data with bit 1 cleared to 0.

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