LSI Symbios SYM53C040 Technical Manual page 152

Enclosure services processor
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8-26
The slow blink and fast blink rates are defined in the
Blink Rate (LBR)
mA open drain drivers. Turning the LED off
(MLOx_xA = 0 and MLOx_xB = 0) effectively 3-states the
driver.
Register: 0xFF39
Multipurpose LED Bank 1H Output (MLO1H)
Read/Write
7
6
MLO1_7A MLO1_7B MLO1_6A MLO1_6B MLO1_5A MLO1_5B MLO1_4A MLO1_4B
0
0
MLO1_[7A:4A], [7B:4B]
Multipurpose LED Bank 1H Output
These bits control the Multipurpose LED Bank 1 pins
MPLED1_4, MPLED1_5, MPLED1_6, and MPLED1_7.
One pair of bits controls each LED, according to
Table
The slow blink and fast blink rates are defined in the
Blink Rate (LBR)
mA open drain drivers. Turning the LED off
(MLOx_xA = 0 and MLOx_xB = 0) effectively 3-states the
driver.
Register: 0xFF3A
Multipurpose LED Bank 1L Input (MLI1L)
Read Only
7
6
R
MLI1_3
0
0
R
Reserved
MLI1_[3:0]
Multipurpose LED Bank 1L Input
The bits in this read only register read the live input value
on the MPLED1_0, MPLED1_1, MPLED1_2, and
MPLED1_3 pins. If these pins are 3-stated using the
System Registers
register (0xFF04). All LED pins have 16
5
4
3
Defaults:
0
0
0
8.6.
register (0xFF04). All LED pins have 16
5
4
3
R
MLI1_2
R
Defaults:
0
0
0
2
1
0
0
2
1
MLI1_1
R
MLI1_0
0
0
[7, 5, 3, 1]
[6, 4, 2, 0]
LED
0
0
[7:0]
LED
0
0

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