Table of Contents
1 Introduction .................................................................5
2 Functional Description ...............................................7
2.1 Overview ......................................................................................7
3 Pin Description............................................................9
3.1 Pin Assignment ............................................................................9
3.2 Pinout .........................................................................................11
4 Memory Organization ...............................................13
4.1 Overview ....................................................................................13
4.2 Control Parameters (Latches/Registers) ....................................15
4.3 Organizational Parameters (RAM) .............................................17
5 ASIC Interface............................................................19
5.1 Mode Registers ..........................................................................19
5.1.1 Mode Register 0 ............................................................. 19
5.1.2 Mode Register 1 ............................................................. 21
5.1.3 Mode Register 2 ............................................................. 23
5.2 Status Register...........................................................................25
5.3 Interrupt Controller .....................................................................27
5.3.1 Interrupt Request Register.............................................. 28
5.3.2 Interrupt Acknowledge / Mask Register .......................... 31
5.4 Watchdog Timer .........................................................................31
5.4.1 Automatic Baud Rate Identification................................. 32
5.4.2 Baud Rate Monitoring ..................................................... 32
5.4.3 Response Time Monitoring.............................................32
6 PROFIBUS DP Interface............................................35
6.1 DP Buffer Structure ....................................................................35
6.2 Description of the DP Services...................................................38
6.2.1 Set_Slave_Add (SAP 55) ...............................................38
6.2.2 Set _Prm (SAP 61) ......................................................... 39
6.2.3 Chk_Cfg (SAP 62) .......................................................... 43
6.2.4 Slave_Diag (SAP 60)......................................................44
6.2.5 Write_Read_Data / Data_Exchange (Default_SAP).......46
6.2.6 Global_Control (SAP 58) ................................................ 50
6.2.7 RD_Input (SAP 56) ......................................................... 51
6.2.8 RD_Output (SAP 57) ...................................................... 51
6.2.9 Get_Cfg (SAP 59)...........................................................52
VPC3+C User Manual
Revision 1.03 3
Copyright © profichip GmbH 2004-2006