70 SBC347A 3U VPX Single Board Computer
Publication No. 500-9300527837-000 Rev. A.0
6.30 GPIO15 to GPIO8 Availability Register (0x684)
As GPIO15 to GPIO8 are not supported on SBC347A, this register returns 0x00.
6.31 VPX GDISCRETE1 Out Register (0x688)
The value of this register is driven onto the GDISCRETE1 pin when the direction
mode is set to output:
6.32 VPX GDISCRETE1 In Register (0x689)
This returns the status of the GDISCRETE1 pin, regardless of the direction mode:
6.33 VPX GDISCRETE1 Direction Register (0x68A)
6.34 VPX GDISCRETE1 Interrupt Enable Register (0x68B)
6.35 VPX GDISCRETE1 Level/Edge Register (0x68C)
This sets the interrupt detection sensitivity of the GDISCRETE1 pin (level or edge
mode):
Bits
Read/Write
Description
Default
7
Read/Write
GDISCRETE1
0
6 to 0
Read only
Reserved
0000000
b
Bits
Read/Write
Description
Default
7
Read/Write
GDISCRETE1
0
6 to 0
Read only
Reserved
0000000
b
Bits
Read/Write Description
Default
7
Read/Write GDISCRETE1:
1 = Output
0 = Input
0
6 to 0
Read only
Reserved
0000000
b
Bits
Read/Write
Description
Default
7
Read/Write
GDISCRETE1:
1 = Interrupt enabled
0 = Interrupt masked
0
6 to 0
Read only
Reserved
0000000
b
Bits
Read/Write Description
Default
7
Read/Write GDISCRETE1:
1 = Edge
0 = Level
0
6 to 0
Read only
Reserved
0000000
b