Peripheral Simulation

For Infineon C165 — Port 5 (6-bit Input)

Simulation support for this peripheral or feature is comprised of:

• Dialog boxes which display and allow you to change peripheral configuration.
• VTREGs (Virtual Target Registers) which support I/O with the peripheral.

These simulation capabilities are described below.

Parallel Port 5 Dialog

This dialog displays the SFR and pins of Port 5. This port has alternate functions but it may be used as a 6-bit input-only port. Data written to this port is not output on the device pins.

• P5 / Pins represents the P5 SFR which is a direct reflection of the pins. The checkboxes represent the states of the pins on the simulated MCU. You may set the level of the input pin to high (1) or low (0).

PORTx VTREG
Data Type: unsigned int

The PORTx VTREGs represent the I/O pins of the simulated MCU for Port 0, Port 1, and so on. You may read PORTx to determine the state of the output pins of that port. For example, in the command window, you may type,

PORT8

to obtain the value corresponding to the set pins of Port 8. You may also change the input values of port pins by changing the value of the VTREG. For example,

PORT7=0x00F0

sets bits 4-7 and clears bits 0-3 and 8-15. You may use the bitwise operators AND(&), OR(|) and XOR(^) to change individual bits of the PORTx VTREGs. For example:

PORT2 |=  0x0001;  /* Set P2.0 Pin */
PORT8 &= ~0x0002;  /* Clr P8.1 Pin */
PORT7 ^=  0x0080;  /* Toggle P7.7 Pin */