4

PERIPHERAL CIRCUITS

 

 

 

 

 

 

 

 

 

 

 

 

 

Register name

Address

Bit

Name

Function

 

Setting

 

Init.

R/W

Remarks

 

 

 

 

 

 

 

 

 

 

 

 

 

 

K5 function

00402C0

D7–4

–

reserved

 

 

–

 

–

–

Undefined when read.

select register

(B)

D3

CP4

CP4

1

–

 

0

CP4

0

R/W

Always set to 0.

 

 

D2

CFK52

K52 function selection

1

#ADTRG

 

0

K52

0

R/W

 

 

 

D1

CFK51

K51 function selection

1

#DMAREQ1

 

0

K51

0

R/W

 

 

 

D0

CFK50

K50 function selection

1

#DMAREQ0

 

0

K50

0

R/W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

K5 input port

00402C1

D7–5

–

reserved

 

 

–

 

–

–

0 when being read.

data register

(B)

D4

–

–

1

–

 

 

0

–

–

R

Undefined when read.

 

 

D3

CP4D

CP4 data

1

High

 

 

0

Low

–

R

 

 

 

D2

K52D

K52 input port data

 

 

 

 

 

 

–

R

 

 

 

D1

K51D

K51 input port data

 

 

 

 

 

 

–

R

 

 

 

D0

K50D

K50 input port data

 

 

 

 

 

 

–

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

K6 function

00402C3

D7

CP3

CP3

1

–

 

0

CP3

0

R/W

Always set to 0.

select register

(B)

D6

CP2

CP2

1

–

 

 

0

CP2

0

R/W

 

 

 

D5

CP1

CP1

1

–

 

 

0

CP1

0

R/W

 

 

 

D4

CP0

CP0

1

–

 

 

0

CP0

0

R/W

 

 

 

D3

CFK63

K63 function selection

1

AD3

 

 

0

K63

0

R/W

 

 

 

D2

CFK62

K62 function selection

1

AD2

 

 

0

K62

0

R/W

 

 

 

D1

CFK61

K61 function selection

1

AD1

 

 

0

K61

0

R/W

 

 

 

D0

CFK60

K60 function selection

1

AD0

 

 

0

K60

0

R/W

 

 

 

 

 

 

 

 

 

 

 

 

 

K6 input port

00402C4

D7

CP3D

CP3 data

1

High

 

0

Low

–

R

 

data register

(B)

D6

CP2D

CP2 data

 

 

 

 

 

 

–

R

 

 

 

D5

CP1D

CP1 data

 

 

 

 

 

 

–

R

 

 

 

D4

CP0D

CP0 data

 

 

 

 

 

 

–

R

 

 

 

D3

K63D

K63 input port data

 

 

 

 

 

 

–

R

 

 

 

D2

K62D

K62 input port data

 

 

 

 

 

 

–

R

 

 

 

D1

K61D

K61 input port data

 

 

 

 

 

 

–

R

 

 

 

D0

K60D

K60 input port data

 

 

 

 

 

 

–

R

 

S1C33210 PRODUCT PART

EPSON

A-33