Kontron EPIC/PM, User Manual

Page: 49 / 104

17 16BGeneral Purpose I/O
17.2.1 16-Bit Operating Systems
The 15 GPIOs are driven by the onboard Winbond W83601R controller connected to the I2C bus.
The controller’s registers are accessible by the BIOS extension JIDA (JUMPtec Intelligent Device
Architecture). Additional Information on how to work with JIDA for 16-Bit Operating Systems can be
found on the Kontron Web site.
17.2.2 32-Bit Operating Systems
Kontron Embedded Modules GmbH offers a 32bit API (JIDA32), which also includes protected mode
functions to read and write the GPIOs. This programmer’s interface is available for the major 32-bit
operating systems and can be downloaded from the Kontron Web site.
Detailed programming information about JIDA32 is beyond the scope of this document. Please refer to
the JIDA32 documentation and the sample code, which is part of the JIDA32 package on the Kontron
Web site.
17.2.3 Register Description:
Here is a brief overview of the controller’s register set.
Index R/W Default Register Description
00 R -
GP Port 1: Input Port Data Register
01 R/W 00 GP Port 1: Output Port Data Register
02 R/W F0
GP Port 1: Polarity Inversion Register
03 R/W FF GP Port 1: Input/Output Configuration Register
04 R/W 00 GP Port 1: Output style control Register
05 R -
GP Port 1: Input Latched Data Register
08 R - GP Port 2: Input Port Data Register
09 R/W 00 GP Port 2: Output Port Data Register
0A R/W 70
GP Port 2: Polarity Inversion Register
0B R/W 7F GP Port 2: Input/Output Configuration Register
0C R/W 00 GP Port 2: Output style control Register
0D R -
GP Port 2: Input Latched Data Register
11 R 00 GP Port 2: Interrupt Status Register
13 R/W 00 GP Port 2: Interrupt Enable Register
14 R/W 00 Mode Configuration Register
CR00 - GP Port 1: Input Port Data Register
Bit 7 … 0 Æ Pins GP17 … GP10
This register is a data port for input only. It reflects the incoming logic levels of the pins whether the
pins are defined as an input mode by CR03. It will be inverted data by CR02.
CR01 - GP Port 1: Output Port Data Register
Bit 7 … 0 Æ Pins GP17 … GP10
Kontron User's Guide
EPIC/PM
49