The new CDC 3231G-Cx is a pin-compatible mask ROM derivative of Micronas’ 32-bit Car Dashboard Controller family based on an ARM7TDMI^TM CPU core (CDC 32xxG).

This device comes along with additional features of the Cx platform like a superior power saving module (PSM), one high-speed CAN module (Bosch V2.0B), and an optional device lock module to inhibit Flash access. Main characteristics of the PSM are three additional low-power modes (IDLE, WAKE, and STANDBY), an internal RC oscillator, a polling/Flash timer output, as well as an RTC (Real Time Clock). The CDC 3231G also contains the patented built-in ERM (EMI Reduction Module).

System Architecture

The Car Dashboard Controller CDC 3231G contains an embedded ARM7TDMI processor which operates at a maximum clock frequency of 50 MHz.

The internal high-speed bus connects the following peripherals to the ARM7TDMI processor:

The 16/32-bit bus connects to the mask ROM. All other peripherals are connected to the I/O bus. All I/O ports have multiple functions to obtain utmost flexibility. A total of 91 GPIOs can be selected.

The built-in ERM delivers superb EMI results reducing the peak values by up to 10 dBμV.

The CDC 3231G is fully pin- and software-compatible with all other members of the CDC 32xxG family.

Block diagram of the CDC 3231G

Main Features

Development Tools

Development tool setup