FUJITSU SEMICONDUCTOR DS705-00009-1v0-E DATA SHEET 32-bit Microcontroller FR Family FR81S MB91570 Series MB91F575B/F575BS/F575BH/F575BHS MB91F577B/F577BS/F577BH/F577BHS OVERVIEW This series is Fujitsu 32-bit microcontroller designed for automotive and industrial control applications. It contains the FR81S CPU that is compatible with the FR family. The FR81S has a high level performance among the Fujitsu FR family by enhancing CPU instruction pipeline and load store processing, and improving internal bus transfer. It is best suited for application control for automotive. Note: FR, the abbreviation of FUJITSU RISC controller, is a line of products of Fujitsu Semiconductor Limited. FEATURES FR81S CPU Core 32-bit RISC, load/store architecture, 5-stage pipeline Maximum operating frequency: 80 MHz (Source oscillation = 4.0 MHz and 20 multiplied ( PLL clock multiplication system )) General-purpose register : 32-bit 16 sets 16-bit fixed length instructions ( basic instruction ), 1 instruction per cycle Instructions appropriate to embedded applications Memory-to-memory transfer instruction Bit processing instruction Barrel shift instruction etc. High-level language support instructions Function entry/exit instructions Register content multi-load and store instructions Bit search instructions Logical 1 detection, 0 detection, and change-point detection Branch instructions with delay slot Decrease overhead during branch process Register interlock function Easy assembler writing For the information for microcontroller supports, see the following web site. MB91570 Series Built-in multiplier and instruction level support Signed 32-bit multiplication : 5 cycles Signed 16-bit multiplication : 3 cycles Interrupt ( PC/PS saving ) 6 cycles ( 16 priority levels ) The Harvard architecture allows simultaneous execution of program and data access. Instruction compatibility with the FR family Built-in memory protection function ( MPU ) Eight protection areas can be specified commonly for instructions and the data. Control access privilege in both privilege mode and user mode. Built-in FPU (floating point arithmetic) IEEE754 compliant Floating-point register 32-bit 16 sets Peripheral Functions Clock generation (equipped with SSCG function) Main oscillation (4MHz) Sub oscillation (32KHz ) or no sub oscillation PLL multiplication rate : 1 to 20 times Built-in Program flash memory capacity MB91F575 : 512 + 64KB MB91F577 : 1024 + 64KB Built-in Data flash memory (WorkFlash) capacity 64KB Built-in RAM capacity Main RAM MB91F575 : 40KB MB91F577 : 64KB BackupRAM 8KB General-purpose ports : 111 (none sub oscillation ), 109 (with sub oscillation ) 2 Included I C pseudo open drain ports : 4 P057 : Input only External bus interface 22-bit address, 16-bit data 23 pins of 9-bit address, 8-bit data, ASX, CS0X, CS1X, RDX, WR0X, and WR1X can select 5V/3.3V by the VCCE power supply DMA Controller Up to 16 channels can be started simultaneously. 2 transfer factors ( Internal peripheral request and software ) A/D converter (successive approximation type) 8/10-bit resolution : 40 channels Conversion time : 3s D/A converter (R-2R type) 8-bit resolution : 2 channels External interrupt input: 16 channels Level /), or edge detection ( rising or falling ) enabled LIN-UART 6 channels, ch.2 to ch.7 Selectable from UART, synchronous mode or LIN-UART mode LIN protocol Revision 2.1 supported (LIN-UART). SPI( Serial Peripheral Interface ) supported ( synchronous mode ) Full-duplex double buffering system LIN synch break detection ( linked to the input capture ) Built-in dedicated baud rate generator DMA transfer support Multi-function serial communication (built-in transmission/reception FIFO memory ) : 4 channels < UART (Asynchronous serial interface) > 2 DS705-00009-1v0-E FUJITSU SEMICONDUCTOR CONFIDENTIAL