LSI Symbios SYM53C040 Technical Manual page 156

Enclosure services processor
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8-30
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: 0xFF41
Multipurpose LED Bank 2H Output (MLO2H)
Read/Write
7
6
ML02_7A MLO2_7B MLO2_6A MLO2_6B MLO2_5A MLO2_5B ML02_4A MLO2_4B
0
0
MLO2_[7A:4A], [7B:4B]
Multipurpose LED Bank 2H Output
These bits control the Multipurpose LED Bank 2 pins
MPLED2_4, MPLED2_5, MPLED2_6, and MPLED2_7.
Two bits control each LED, according to
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: 0xFF42
Multipurpose LED Bank 2L Input (MLI2L)
Read Only
7
6
R
MLI2_3
0
0
R
Reserved
MLI2_[3:0]
Multipurpose LED Bank 2L Input
The bits in this read only register read the live input value
on the MPLED2_0, MPLED2_1, MPLED2_2, and
MPLED2_3 pins. If these pins are 3-stated using the
System Registers
register (0xFF04). All LED pins have 16
5
4
3
Default:
0
0
0
register (0xFF04). All LED pins have 16
5
4
3
R
MLI2_2
R
Default:
0
0
0
2
1
0
0
Table
8.7.
2
1
MLI2_1
R
MLI2_0
0
0
[7, 5, 3, 1]
[6, 4, 2, 0]
LED
0
0
[7:0]
LED
0
0

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