8-25
Register: 0xFF37
Multipurpose LED Bank 0H Latch (MLL0H)
Read/Write
R
Reserved
[7, 5, 3, 1]
MLL0_[7:4]
Multipurpose LED Bank 0H Latch
[6, 4, 2, 0]
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
MLO1_[3A:0A], [3B:0B]
Multipurpose LED Bank 1L Output
[7:0]
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
.
7
6
5
4
3
2
1
0
R
MLL0_7
R
MLL0_6
R
MLL0_5
R
MLL0_4
Defaults:
0
x
0
x
0
x
0
x
7
6
5
4
3
2
1
0
MLO1_3A MLO1_3B MLO1_2A MLO1_2B MLO1_1A MLO1_1B MLO1_0A MLO1_0B
Defaults:
0
0
0
0
0
0
0
0
Table 8.6
LED Bank 1 Behavior
MLOx_xA
MLOx_xB
LED Behavior
0
0
Off
0
1
Slow blink
1
0
Fast blink
1
1
Constant on
Summary of Contents for Symbios SYM53C040
Page 12: ...xii Preface...
Page 90: ...4 18 SCSI and DMA Registers...
Page 98: ...5 8 SFF 8067 Registers...
Page 110: ...6 12 Two Wire Serial Registers...
Page 126: ...7 16 Miscellaneous Registers...
Page 160: ...8 34 System Registers...
Page 184: ...9 24 Electrical Characteristics...
Page 194: ...A 10 Register Summary...
Page 214: ......