SAP5SD-A-G1-T Datasheet, PDF (39/63 Pages) List of Unclassifed Manufacturers – Universal Actuator-Sensor Interface IC

SAP5S / SAP51
Universal Actuator-Sensor Interface IC
4.9. Data and Parameter Port Configuration
Data and Parameter ports are configured by programming the IO_Code in the E²PROM. Moreover, the
configuration also depends on the Safety_Mode_Enable settings.
NOTE: Below Table 25 refers to slaves not running in Safety Mode (refer to chapter 4.18)
The following configurations are possible:
 OUT: output only, data are valid up to the next DSTBn/PSTBn strobe pulse
 IN: input only, open drain output is fixed at high-impedance state
 I/O: bi-directional port with timing according to Figure 6 and Figure 7
 INOUT: In case IO_Code = 7 Parameter ports are configured outputs after WPAR master calls and
inputs after DEXG master calls, respectively.
 PASSIV: no input function and open drain output is fixed at high-impedance state
If one of the data ports D0…D3 is configured as OUT, the SAP5 slave answer to a DEXG master request
contains the respective information bit I0...I3 received from the master. However, parameter ports P0...P3 are
always operated bi-directional, including a read-back of the actual port level as described in chapter 4.8 on
page 33.
Table 25: Data and Parameter Port Configuration for Non-Safety-Mode Operation
IO_Code
D0
D1
D2
D3 ¹
P0
P1
P2
P3 ¹
0
IN
IN
IN
IN
OUT
OUT
OUT
OUT
1
IN
IN
IN
OUT
OUT
OUT
OUT
OUT
2
IN
IN
IN
I/O
OUT
OUT
OUT
OUT
3
IN
IN
OUT
OUT
OUT
OUT
OUT
OUT
4
IN
IN
I/O
I/O
OUT
OUT
OUT
OUT
5
IN
OUT
OUT
OUT
OUT
OUT
OUT
OUT
6
IN
I/O
I/O
I/O
OUT
OUT
OUT
OUT
7²
OUT
OUT
OUT
OUT
INOUT INOUT INOUT INOUT
8
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
9
OUT
OUT
OUT
IN
OUT
OUT
OUT
OUT
A
OUT
OUT
OUT
I/O
OUT
OUT
OUT
OUT
B
OUT
OUT
IN
IN
OUT
OUT
OUT
OUT
C
OUT
OUT
I/O
I/O
OUT
OUT
OUT
OUT
D
OUT
IN
IN
IN
OUT
OUT
OUT
OUT
E
OUT
I/O
I/O
I/O
OUT
OUT
OUT
OUT
F³
PASSIV PASSIV PASSIV PASSIV OUT
OUT
OUT
OUT
1 _{Slaves running in Extended_Address_Mode (ID_Code = 0xA) will output the respective select bit (I3) at the}
P3 pin and at the D3 pin in case it is configured as OUT or I/O.
2 _{The special case IO_Code = 0x7 causes the Parameter Ports acting as Data Inputs after DEXG master}
calls. Thus a bi-directional data exchange with separate data inputs and outputs is possible. Parameter Ports
are always outputs after WPAR master calls.
NOTE: IO_Code = 0x7 is not allowed for the SAP5 16 Pin version.
3 _{There is no data exchange possible in case IO_Code = 0xF, i.e. Data Outputs are always at high impedance}
state, no slave answer is generated for received DEXG master calls.
Data Sheet
July 17, 2012
© 2012 Zentrum Mikroelektronik Dresden AG — Rev. 3.1
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without
the prior written consent of the copyright owner. The information furnished in this publication is PRELIMINARY and subject to
changes without notice.
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