DS07-16303-3E Datasheet, PDF (3/97 Pages) Fujitsu Component Limited. – 32-bit RISC Microcontroller CMOS FR30 Series

MB91121
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• Lock feature: Keeping a specific program code resident in the cache
6. DMAC (DMA Controller)
• 8 channels
• Transfer incident/external pins/UART interrupt requests/DSP Macros/Software start
• Transfer sequence : Step transfer/block transfer/burst transfer/continuous transfer
• Transfer data length : 8 bits/16 bits/32 bits selective
• Interrupt request enables temporary stop operation
7. UART
• 3 independent channels
• Full-duplex double buffer
• Data length : 7 bits to 9 bits (non-parity) , 6 bits to 8 bits (parity)
• Asynchronous (start-stop system) , CLK-synchronized communication selective
• Multi-processor mode
• Internal 16-bit timer (U-TIMER) operating as a proprietary baud rate generator : Generates any given baud rate
• Use external clock can be used as a transfer clock
• Error detection : Parity, frame, overrun
8. A/D converter (successive approximation conversion type)
• 10-bit resolution, 8 channels
• Successive approximation type : Conversion time of 5.6 µs at 25 MHz
• Internal sample and hold circuit
• Conversion mode : Single conversion/scanning conversion/repeated conversion selective
• Start : Software/external trigger/internal timer selective
9. Reload timer
• 16-bit timer : 3 channels
• Internal clock : 2 clock cycle resolution, divide by 2/8/32 selective
10. Other interval timers
• 16-bit timer : 3 channels (U-TIMER)
• PWM timer : 4 channels
• Watchdog timer : 1 channel
11. Bit search module
• First bit transition “1” or “0” from MSB can be detected in 1 cycle
12. Interrupt controller
• External interrupt input : Non-maskable interrupt (NMI) , normal interrupt × 8 (INT0 to INT7)
• Internal interrupt incident : UART, DMA controller (DMAC) , A/D converter, U-TIMER, delayed interrupt
module and DSP Macros
• Priority levels of interrupts are programmable except for non-maskable interrupt (in 16 steps) .
Others
1. Reset cause
• Power-on reset/watchdog timer/software reset/external reset
2. Low-power consumption mode
• Sleep mode/stop mode
3. Clock control
• Gear function : Operating clocks for CPU and peripherals are independently selective
Gear clock can be selected from 1/1, 1/2, 1/4 and 1/8 (or 1/2, 1/4, 1/8 and 1/16)
However, operating frequency for peripherals is less than 25 MHz.
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