AN2757 Freescale Semiconductor / Motorola, AN2757 Datasheet - Page 29

• Manufacturer Part Number: AN2757
• Description: MPC5200 Quick Start
• Manufacturer: Freescale Semiconductor / Motorola

Graphical Configuration Tool
Figure 28. Slice Timer Control Page (SLT)
6.6.11
Programmable Serial Controller (PSC)
There are six Programmable Serial Controllers (PSC) on the MPC5200, each of whose can be configured for different modes of
operation (UART, Codec/SPI/I2S, AC97,IrDA). As not all the PSC modules support all operation modes and the PSC control
registers are mostly used in a different way in each mode, setting up the PSC manually is quite a complicated task. Thanks to its
graphical interface, a GCT can save lot of work when configuring the PSC for the required operation.
For each PSC mode selected by a drop-down list box at the top of the page, the content of the control page changes and displays
only the graphical controls applicable to the selected mode.
Figure 29
shows the PSC control page in the UART mode.
The
Figure 29
shows also another GCT feature, not yet described above in this document. As the MPC5200 hardware pins are
mostly shared between different peripheral modules, there is a pin-port multiplexer as a part of the SIM.GPIO module. The port
multiplexer must be configured properly for a given operational mode of each peripheral module which requires the MPC5200
device pins. For example, the PSC in the UART mode requires the port multiplexer to be configured a different way than when
using the PSC in Codec mode. A GCT displays a red warning message when there is any inconsistence between operation mode
of the peripheral module and the current GPIO port multiplexer settings. In most cases, the warning message contains also
hypertext link or links which activate the GCT page where a change is needed or an attention is required.
AN2757 MPC5200 Quick Start and Graphical Configuration Tool
Freescale Semiconductor
29