
VISTEK V1679 single-mode fibre
data transceiver
28
Issue 1
7.
DART INTERFACE
7.1
General
The V1679 board is a Class 4 DART module with a serial EEPROM for reading and writing card details
through the DARTbus in the same manner as other V1600 range cards. In addition, the unit has several
read-only status ports, over which the board’s operational status can be obtained.
7.2
DART Control Registers
The following table shows all used Control Bits:
Bit
Description
0
not used
1
not used
2
not used
3
not used
4
not used
5
not used
6
not used
7
not used
8
DART driven GPI Input1
'0': Reset
'1': Set
9
DART driven GPI Input2
'0': Reset
'1': Set
10
DART driven GPI Input3
'0': Reset
'1': Set
11
DART driven GPI Input4
'0': Reset
'1': Set
12
DART driven GPI Input5
'0': Reset
'1': Set
13
DART driven GPI Input6
'0': Reset
'1': Set
14
DART driven GPI Input7
'0': Reset
'1': Set
15
DART driven GPI Input8
'0': Reset
'1': Set
16
Mask Bit for GPI I/O1
'0': ext. controlled
'1': DART driven
17
Mask Bit for GPI I/O2
'0': ext. controlled
'1': DART driven
18
Mask Bit for GPI I/O3
'0': ext. controlled
'1': DART driven
19
Mask Bit for GPI I/O4
'0': ext. controlled
'1': DART driven
20
Mask Bit for GPI I/O5
'0': ext. controlled
'1': DART driven
21
Mask Bit for GPI I/O6
'0': ext. controlled
'1': DART driven
22
Mask Bit for GPI I/O7
'0': ext. controlled
'1': DART driven
23
Mask Bit for GPI I/O8
'0': ext. controlled
'1': DART driven
24
DART driven GPI Output1
'0': Reset
'1': Set
25
DART driven GPI Output2
'0': Reset
'1': Set
26
DART driven GPI Output3
'0': Reset
'1': Set
27
DART driven GPI Output4
'0': Reset
'1': Set
28
DART driven GPI Output5
'0': Reset
'1': Set
29
DART driven GPI Output6
'0': Reset
'1': Set
30
DART driven GPI Output7
'0': Reset
'1': Set
31
DART driven GPI Output8
'0': Reset
'1': Set
Table 4 : DART Control Register Bits