CP3002
Configuration
ID 1042-9252, Rev. 2.0
Page 4 - 19
P R E L I M I N A R Y
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 be used only if the CP3002 is ordered as a rear I/
O version and the rear I/O GPIO operation is configured through the dedicated rear I/O module
configuration signal on the CompactPCI J2 connector.
Table 4-19: General Purpose Input Register (GPIN)
REGISTER NAME
GENERAL PURPOSE INPUT REGISTER (GPIN)
ADDRESS
0x293
BIT
NAME
DESCRIPTION
RESET
VALUE
ACCESS
7 - 5
Res.
Reserved
000
R
4
GPI4
General purpose input 4 signal (3.3V LVTTL):
0 = Input low
1 = Input high
1
R
3
GPI3
General purpose input 3 signal (3.3V LVTTL):
0 = Input low
1 = Input high
1
R
2
GPI2
General purpose input 2 signal (3.3V LVTTL):
0 = Input low
1 = Input high
1
R
1
GPI1
General purpose input 1 signal (3.3V LVTTL):
0 = Input low
1 = Input high
1
R
0
GPI0
General purpose input 0 signal (3.3V LVTTL):
0 = Input low
1 = Input high
1
R
Note ...
The CP3002 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 3.3 V LVTTL signaling only (not 5V
friendly).
