LSI Symbios SYM53C040 Technical Manual page 157

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Multipurpose LED Bank 2 Output Registers (0xFF38,
0xFF39), they can be used as input pins.
Register: 0xFF43
Multipurpose LED Bank 2H Input (MLI2H)
Read Only
7
6
R
MLI2_7
0
0
R
Reserved
MLI2_[7:4]
Multipurpose LED Bank 2H Input
The bits in this read only register read the live input value
on the MPLED2_4, MPLED2_5, MPLED2_6, and
MPLED2_7 pins. If these pins are 3-stated using the
Multipurpose LED Bank 2 Output Registers (0xFF38,
0xFF39), they can be used as input pins.
Register: 0xFF44
Multipurpose LED Bank 2L Latch Mask (MLLM2L)
Read/Write
7
6
R
MLLM2_3
0
0
R
Reserved
MLLM2_[3:0] Multipurpose LED Bank 2L Latch Mask
The bits in this read/write register define the write mask
for the
(0xFF3E) and the
(MLL2H)
bits allows the corresponding bit in MLL2L and MLL2H to
be modified.
5
4
3
R
MLI2_6
R
Default:
0
0
0
5
4
3
R
MLLM2_2
R
Defaults:
0
0
0
Multipurpose LED Bank 2L Latch (MLL2L)
Multipurpose LED Bank 2H Latch
register (0xFF3F). A value of 1 in any of these
2
1
MLI2_5
R
MLI2_4
0
0
[7, 5, 3, 1]
[6, 4, 2, 0]
2
1
MLLM2_1
R
MLLM2_0
0
0
[7, 5, 3, 1]
[6, 4, 2, 0]
register
0
0
0
0
8-31

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