Copyright © Siemens AG 2016. All rights reserved
331
ERTEC 200P-2 Manual
Technical data subject to change
Version 1.0
Register:
MI2C_SOFTWARE_RESET
Address:
1Ch
Bits:
7dt0
Reset
value:
00h
Attributes:
w
Description:
Software Reset
Register:
EX_CTRL_1
Address:
20h
Bits:
7dt0
Reset
value:
0h
Attributes:
r(h) (w)
Description:
Control register for IO expander 1.
Bit Identifier
Reset Attr.
Function / Description
0
MODE
0h r w
0 = Service on demand, default
1 = Periodic service
1
OUT
0h rh w
0 = Write service off, default
1 = Write service on
Send output data as specified in MODE
2
IN
0h rh w
0 = Read service off, default
1 = Read service on
Read input data as specified in MODE
3
BUSY
0h rh
Read-only.
0 = Currently inactive, default
1 = Currently active
4
ERROR
0h rh
Read-only.
0 = No Error, default
1 = Error occured
7
SCL_Toggle
0h r w
SCL toggle bit: '0' keeps SCL high, '1' pulls
SCL to low.
Register:
EX_ADDR_1
Address:
24h
Bits:
7dt0
Reset
value:
00h
Attributes:
r
w
Description:
Slave address for expander 1.
Register:
EX_DATA_OUT_1
Address:
28h
Bits:
7dt0
Reset
value:
00h
Attributes:
r
w
Description:
Send data for expander 1.
Register:
EX_DATA_IN_1
Address:
2Ch
Bits:
7dt0
Reset
value:
00h
Attributes:
rh