CDC3207G-C Micronas Intermetall GmbH, CDC3207G-C Datasheet - Page 23

• Manufacturer Part Number: CDC3207G-C
• Description: ARM7-Based Car Dashboard Controller
• Manufacturer: Micronas Intermetall GmbH

CDC 3207G-C
PRELIMINARY DATA SHEET
7. Hardware Options
7.1. Functional Description
Hardware Options are available in several areas to adapt the
IC function to the host system requirements. For details see
the CDC32xxG-C Hardware Manual.
Hardware Option setting requires two steps:
1. selection is done by programming dedicated address loca-
tions in the HW Options field with the desired options’ code.
2. activation is done by copying the HW Options field to the
corresponding HW Options registers at least once after each
reset.
In EMU and MCM devices all HW Options are SW progam-
mable.
In mask ROM derivatives the clock options and the Watch-
dog, Clock and Supply Monitors are hard wired according to
the HW Options field of the ROM code hex file. Those
options can only be altered by changing a production mask.
To ensure compatible option settings in this IC and mask
ROM derivatives when run with the same ROM code, it is
mandatory to always write the HW Options field to the HW
option registers directly after reset.
Micronas
23
June 12, 2003; 6251-589-1PD