LSI Symbios SYM53C040 Technical Manual page 137

Enclosure services processor
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Register: 0xFF0D
Multipurpose I/O Bank 0 Pull-down Enable (MPPE0)
Read/Write
7
6
MPPE0_7 MPPE0_6 MPPE0_5 MPPE0_4 MPPE0_3 MPPE0_2 MPPE0_1 MPPE0_0
1
1
MPPE0_[7:0] Multipurpose I/O Bank 0 Pull-down Enable
These read/write register bits determine if pull-downs are
active on the I/O pins MPIO0_0, MPIO0_1, MPIO0_2,
MPIO0_3, MPIO0_4, MPIO0_5, MPIO0_6, and
MPIO0_7. A value of 1 indicates the pull-down is active,
a value of 0 indicates the pull-down is inactive.
Register: 0xFF10
Multipurpose I/O Bank 1 Output (MPO1)
Read/Write
7
6
MPO1_7
MPO1_6
MPO1_5
0
0
MPO1_[7:0]
Multipurpose I/O Bank 1 Output
The values stored in these register bits are driven on the
I/O pins MPIO1_0, MPIO1_1, MPIO1_2, MPIO1_3,
MPIO1_4, MPIO1_5, MPIO1_6, and MPIO1_7 when the
corresponding pin enable in register 0xFF11 is set.
5
4
3
Defaults:
1
1
1
5
4
3
MPO1_4
MPO1_3
Defaults:
0
0
0
2
1
1
1
2
1
MPO1_2
MPO1_1
MPO1_0
0
0
0
1
[7:0]
0
0
[7:0]
8-11

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