Led Bank 1 Behavior - LSI Symbios SYM53C040 Technical Manual

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Register: 0xFF37
Multipurpose LED Bank 0H Latch (MLL0H)
Read/Write
7
6
R
MLL0_7
0
x
R
Reserved
MLL0_[7:4]
Multipurpose LED Bank 0H Latch
The bits in this read/write register store the power-on
value of the I/O pins MPLED0_4, MPLED0_5,
MPLED0_6, and MPLED0_7. The values on these pins
are latched into this register on the deasserting edge of
the RESET input signal or the internal power-on reset.
Register: 0xFF38
Multipurpose LED Bank 1L Output (MLO1L)
Read/Write
7
6
MLO1_3A MLO1_3B MLO1_2A MLO1_2B MLO1_1A MLO1_1B MLO1_0A MLO1_0B
0
0
MLO1_[3A:0A], [3B:0B]
Multipurpose LED Bank 1L Output
These bits control the Multipurpose LED Bank 1 pins
MPLED1_0, MPLED1_1, MPLED1_2, and MPLED1_3.
One pair of bits controls each LED, according to
Table
Table 8.6
MLOx_xA
5
4
3
R
MLL0_6
R
Defaults:
0
x
0
5
4
3
Defaults:
0
0
0
8.6.

LED Bank 1 Behavior

MLOx_xB
0
0
0
1
1
0
1
1
2
1
MLL0_5
R
MLL0_4
x
0
[7, 5, 3, 1]
[6, 4, 2, 0]
2
1
0
0
LED Behavior
Off
Slow blink
Fast blink
Constant on
0
x
0
0
[7:0]
8-25

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