9 application function i/o, Application function i/o, Table 3-5: pcie-7350 afi i/o configuration – ADLINK PCIe-7350 User Manual
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Function Block and Operation Theory
3.9
Application Function I/O
PCIe-7350 features eight AFI (Application Function I/O) lines.
These bi-direction digital I/O lines allow you to route I2C, SPI, trig-
ger, event, handshaking, and clock signals to/from the SCSI-
VHDCI I/O connector. The following table lists the supporting func-
tions of AFI lines and the corresponding pin out.
Function
Signal
I/O AFI0 AFI1 AFI2 AFI3 AFI4 AFI5 AFI6 AFI7
I
2
C Master
SCL
O
●
SDA
I/O
●
SPI Master
SCLK
O
●
SDO
O
●
SDI
I
●
CS_0
O
●
CS_1
O
●
CS_2
O
●
External
Trigger in
DI-Start
I
●
●
●
●
●
●
●
●
DO-Start
I
●
●
●
●
●
●
●
●
DI-Pause
I
●
●
●
●
●
●
●
●
DO-Pause
I
●
●
●
●
●
●
●
●
Trigger out
DI_SW
O
●
●
●
●
●
●
●
●
DO_SW
O
●
●
●
●
●
●
●
●
Event
PM
O
●
●
●
●
●
●
●
●
COS
O
●
●
●
●
●
●
●
●
Handshake
DI-REQ
I
●
●
●
●
●
●
●
●
DI-ACK
O
●
●
●
●
●
●
●
●
DI-TRIG
I
●
●
●
●
●
●
●
●
DO-REQ
O
●
●
●
●
●
●
●
●
DO-ACK
I
●
●
●
●
●
●
●
●
DO-TRIG
I
●
●
●
●
●
●
●
●
Clock
DO-SCLK
I/O
●
DI-SCLK
I/O
●
Table 3-5: PCIe-7350 AFI I/O Configuration