CP3005-SA – Rev. 0.6 Preliminary
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4.3.17.
General Purpose Input Register (GPIN)
The General Purpose Input Register holds the general purpose input signals of the rear I/O CompactPCI connector J2.
This register can only be used if the CP3005-SA is ordered as a rear I/O version and the rear I/O GPIO operation is
configured through the dedicated rear transition module configuration signal on the CompactPCI connector J2.
Table 29: General Purpose Input Register (GPIN)
Address
0x293
Bit
7
6
5
4
3
2
1
0
Name
Reserved
R
000
GPI4
GPI3
GPI2
GPI1
GPI0
Access
R
R
R
R
R
Reset
1
1
1
1
1
Bitfield
Description
4 - 0
GPI4..0
General purpose input signals (3.3V LVTTL):
0 = Input low
1 = Input high
The CP3005-SA provides pull-up resistors on the rear I/O signal pins GPI[4..0], which leads
to the default setting “input high” if the inputs are not connected. The general purpose
inputs support 3.3V LVTTL signaling only (not 5V-tolerant).
