User manual

ZEUS user manual
Issue E
30
Expander 2 - I2C Address 0x22
GPIO Signal name Dir Active Function
Power-up
state See section…
0 CLK_SHDN# Output Low
Clock Synthesizer
Shutdown
PU
Clock generator power
management, page 64
1 LVDS_FES# Output Low
LVDS Falling Edge
Strobe
PU
LVDS interface
,
page 44
2 CAN_SHDN Output High
CAN Transceiver
shutdown
PU CAN bus
, page 52
3
U1_RS232_SH
DN#
Output Low
COM1 RS232
transceiver
shutdown
PU
4
U2_RS232_SH
DN#
Output Low
COM2 RS232
transceiver
shutdown
PU
COM Ports power
management
, page 65
5
U3_RS485_SL
O#
Output Low
COM3 RS485
transceiver slew
rate control
PU
COM3 –
RS232/RS485/RS422
interface
, page 48
6
U4_RS485_SL
O#
Output Low
COM4 RS485
transceiver slew
rate control
PU
COM4 – RS422/485
interface
, page 49
7 NOT USED PU
8-11 ISS [0-3] Inputs NA PCB Issue Number
12-15 VER [0-3] Inputs NA
PCB Version
Number