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Maxq610 user’s guide – Maxim Integrated MAXQ610 User Manual

Page 98

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MAXQ610 User’s Guide

Bits 7:0: Port 1 Input Bits. The read values of these bits reflect the logic states present at port 1 pins P1 .0 to P1 .7 .

Bits 7:0: Port 2 Input Bits. The read values of these bits reflect the logic states present at port 2 pins P2 .0 to P2 .7 .

Bits 7:0: Port 3 Input Bits. The read values of these bits reflect the logic states present at port 3 pins P3 .0 to P4 .7 .

Bits 5:0: Port 4 Input Bits. The read values of these bits reflect the logic states present at port 4 pins P4 .0 to P4 .5 .

Register Name

PI1

Register Description

Port 1 Input Register

Register Address

M0[09h]

Register Name

PI2

Register Description

Port 2 Input Register

Register Address

M0[0Ah]

Register Name

PI3

Register Description

Port 3 Input Register

Register Address

M0[0Bh]

Register Name

PI4

Register Description

Port 4 Input Register

Register Address

M1[08h]

Bit #

7

6

5

4

3

2

1

0

Name

PI1 .7

PI1 .6

PI1 .5

PI1 .4

PI1 .3

PI1 .2

PI1 .1

PI1 .0

Reset

s

s

s

s

s

s

s

s

Access

r

r

r

r

r

r

r

r

Bit #

7

6

5

4

3

2

1

0

Name

PI2 .7

PI2 .6

PI2 .5

PI2 .4

PI2 .3

PI2 .2

PI2 .1

PI2 .0

Reset

s

s

s

s

s

s

s

s

Access

r

r

r

r

r

r

r

r

Bit #

7

6

5

4

3

2

1

0

Name

PI3 .7

PI3 .6

PI3 .5

PI3 .4

PI3 .3

PI3 .2

PI3 .1

PI3 .0

Reset

s

s

s

s

s

s

s

s

Access

r

r

r

r

r

r

r

r

Bit #

7

6

5

4

3

2

1

0

Name

PI4 .5

PI4 .4

PI4 .3

PI4 .2

PI4 .1

PI4 .0

Reset

0

0

s

s

s

s

s

s

Access

r

r

r

r

r

r

r

r