3.4.1 SAM4CMS16C

The PL360MB is equipped with a SAM4CMS16C device.

The SAM4CM series represents a family of system-on-chip solutions for residential and polyphase metering applications. The devices offer up to class 0.2 metrology accuracy over a dynamic range of 3000:1 within the industrial temperature range and are compliant with ANSI C12.20-2002 and IEC62053-22 standards.

The SAM4CM family offers an unprecedented level of integration and flexibility with dual 32-bit ARM Cortex-M4 RISC processors running at a maximum speed of 120 MHz each, up to 2 Mbytes of embedded Flash, 304 Kbytes of SRAM and on-chip cache.

The peripheral set includes metrology-specific precision voltage reference, up to seven (7) simultaneously sampled Sigma-Delta ADC subsystems supporting three (3) voltage and four (4) current measurement channels (polyphase versions only), an extensive set of embedded cryptographic features, anti-tamper, Floating Point Unit (FPU), four USARTs, two UARTs, two TWIs, four SPIs, three 16-bit PWMs, two 3-channel general-purpose 16-bit timers, 6-channel 10-bit ADC, battery-backed RTC with <1 μA consumption and a 38 x 6 segmented LCD controller.

Table 3-17, Table 3-18 and Table 3-19 summarize the functionality of each input/output line of the SAM4CMS16C microcontroller in PL360MB board.