Led Behavior - LSI Symbios SYM53C040 Technical Manual

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Register: 0xFF30
Multipurpose LED Bank 0L Output (MLO0L)
Read/Write
7
6
MLO0_3A MLO0_3B MLO0_2A MLO0_2B MLO0_1A MLO0_1B MLO0_0A MLO0_0B
0
0
MLO0_[3A:0A], [3B:0B]
Multipurpose LED Bank 0L Output
The bits in this register control the Multipurpose LED
Bank 0 pins MPLED0_3, MPLED0_2, MPLED0_1, and
MPLED0_0. Two bits are used to control each LED,
according to
Table 8.5
MLOx_xA
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.
5
4
3
Defaults:
0
0
0
Table
8.5.

LED Behavior

MLOx_xB
0
0
0
1
1
0
1
1
register (0xFF04). All LED pins have 16
2
1
0
0
0
0
[7:0]
LED Behavior
Off
Slow blink
Fast blink
Constant on
LED
8-21

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