ARM9 micro enables support for home appliance safety standards

Based on the low power 32bit ARM926EJ-S core operating at up to 200MHz, Toshiba says the TMPA900CMXBG simplifies the design and reduces the component count of embedded systems that need to combine human machine interface support with multiple connectivity options. This includes a variety of industrial, consumer and multimedia designs and home appliances. In the case of the latter, an integrated oscillation frequency detector enables hardware monitoring of the cpu clock to enable compliance with the requirements of safety standard IEC60730 (Class B). The new microcontroller features an lcd controller for STN/TFT colour displays up to a maximum of 1024 x 768 pixels, a touch screen interface and an image process accelerator that provides on chip scaling, filtering and image blending at resolutions up to 800 x 480 pixels. The USB 2.0 Host interface and high speed (480Mbps) USB 2.0 device interface join connectivity options such as SPI, UART, I2C, I2S and a connection for a cmos image sensor. Built in peripherals include an 8channel 10bit adc, a 6 channel 16bit timer, a watchdog timer, a real time clock and a melody/alarm generator. As well as 16kBytes of boot rom and 32kBytes of embedded ram for program, data and display memory, the TMPA900CMXBG has a built in memory controller supporting external sdr sdram and ddr LVCMOS_I/O-type sdram. An sd host controller is compatible with high speed mode sd cards with capacities to 32GBytes. The TMPA900CMXBG is supplied in a 289 pin BGA package and offers 91 general purpose I/O pins. Clock speeds of up to 200MHz are supported at temperatures between -20 and 85^°C.