Omega OME-PIO-D144 3.3.9 I/O Selection Control Register

3.3.9 I/O Selection Control Register

(Write): wBase+0xc8

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

0 0 CN2_PC CN2_PB CN2_PA CN1_PC CN1_PB CN1_PA

(Write): wBase+0xcc

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

0 0 CN4_PC CN4_PB CN4_PA CN3_PC CN3_PB CN3_PA

(Write): wBase+0xd0

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

0 0 CN6_PC CN6_PB CN6_PA CN5_PC CN5_PB CN5_PA

Note. Refer to Sec. 3.1 for more information about wBase.

For example:

CN1_PA=1Æ Port is used as a D/I port.

CN1_PA=0Æ Port is used as a D/O port.

There are eighteen 8-bit I/O ports in the OME-PIO-D144. Every I/O port can be

programmed as D/I or D/O port. When the PC is first powered up, all eighteen ports

are used as D/I port. The I/O port location is given as follows:

Connector of OME-PIO-

D144

PA0 to PA7 PB0 to PB7 PC0 to PC7

CN1 CN1_PA CN1_PB CN1_PC

CN2 CN2_PA CN2_PB CN2_PC

CN3 CN3_PA CN3_PB CN3_PC

CN4 CN4_PA CN4_PB CN4_PC

CN5 CN5_PA CN5_PB CN5_PC

CN6 CN6_PA CN6_PB CN6_PC

outp(wBase+0xc8,0); /* CN1_PA/PB/PC to CN2_PA/PB/PC are all D/O port */

outp(wBase+0xcc,0x3f); /* CN3_PA/PB/PC to CN4_PA/PB/PC are all D/I port */

outp(wBase+0xd0,0x38); /* CN5_PA/PB/PC are all D/O port */

/* CN6_PA/PB/PC are all D/I port */

Refer to Sec. 2.2 for I/O Port Location.

OME-PIO-D144 User’s Manual (Ver.2.1, Sep/2001) ---- 32

Contents

Main Servicing North America: USA: Canada: For immediate technical or application assistance: USA and Canada: OME-PIO-D144 Table of Contents Page 1. Introduction 1.1 Specifications 1.2 Product Check List Attention! 2. Hardware configuration 2.1 Board Layout 2.2 I/O Port Location 2.3 Enable I/O Operation 2.4 D/I/O Architecture 2.5 Interrupt Operation & Active_High. The interrupt signal can be programmed to inverted or non- inverted Refer to DEMO3.C for source code. Refer to DEMO4.C for source code. Page Page 2.6 Daughter Boards 2.6.1 OME-DB-37 2.6.2 OME-DN-37 & OME-DN-50 2.6.3 OME-DB-8125 2.6.4 OME-ADP-37/PCI & OME-ADP-50/PCI 2.6.5 OME-DB-24P/24PD Isolated Input Board 2.6.6 OME-DB-24R/24RD Relay Board 2.6.7 OME-DB-24PR/24POR/24C 2.6.8 Daughter Board Comparison Table 2.7 Pin Assignment All signals are TTL compatible. Page 3. I/O Control Register 3.1 How to Find the I/O Address Vendor ID = 0xE159 Device ID = 0x0002 (0x0001 for Rev 4.0 or above) Sub-Vendor ID= 0x80 (0x5C80 for Rev 4.0 or above) Sub-Device ID = 0x01 Sub-Aux ID = 0x00 Page 3.1.1 PIO_DriverInit 3.1.2 PIO_GetConfigAddressSpace 3.1.3 Show_PIO_PISO 3.2 The Assignment of I/O Address Page 3.3 The I/O Address Map 3.3.1 RESET\ Control Register 3.3.2 AUX Control Register 3.3.3 AUX data Register 3.3.4 INT Mask Control Register 3.3.5 Aux Status Register 3.3.6 Interrupt Polarity Control Register Refer to Sec. 2.5 for more information. Refer to DEMO5.C for more information. 3.3.7 Read/Write 8-bit data Register 3.3.8 Active I/O Port Control Register Refer to Sec. 2.2 for I/O port location. 3.3.9 I/O Selection Control Register Refer to Sec. 2.2 for I/O Port Location. 4. Demo Program 4.1 OME-PIO-D144.H 4.2 Demo1: Use D/O of CN1 Page 4.3 Demo2: Use D/O of CN1~CN6 Page 4.4 Demo3: Interrupt demo1 Refer to Sec. 2.5.1 for more information. 4.5 Demo4: Interrupt demo2 Refer to Sec. 2.5.2 for more information. 4.6 Demo5: Interrupt demo3 Page Page 4.7 DEMO 6: Outport of CN1-CN6 Page 4.8 Demo10: Find Card Number Page WARRANTY/DISCLAIMER RETURN REQUESTS/INQUIRIES M4037/0104 Where Do I Find Everything I Need for Process Measurement and Control? OMEGAOf Course! Shop online at www.omega.com TEMPERATURE PRESSURE, STRAIN AND FORCE FLOW/LEVEL pH/CONDUCTIVITY