General Purpose Input Register (Gpin) - Kontron CP308 User Manual

CP308
4.3.16

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 CP308 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
ADDRESS
BIT NAME
7 - 5 Res. Reserved
4 GPI4 General purpose input 4 signal (3.3 V TTL):
0 = Input low
1 = Input high
3 GPI3 General purpose input 3 signal (3.3 V TTL):
0 = Input low
1 = Input high
2 GPI2 General purpose input 2 signal (3.3 V TTL):
0 = Input low
1 = Input high
1 GPI1 General purpose input 1 signal (3.3 V TTL):
0 = Input low
1 = Input high
0 GPI0 General purpose input 0 signal (3.3 V TTL):
0 = Input low
1 = Input high
Note ...
The CP308 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 TTL signaling only (not 5V friendly).
ID 1027-4487, Rev. 3.0

GENERAL PURPOSE INPUT REGISTER (GPIN)

0x293
DESCRIPTION
Configuration
RESET
ACCESS
VALUE
000 R
1 R
1 R
1 R
1 R
1 R
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