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