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AT572D940HF-CJ Datasheet(PDF) 31 Page - ATMEL Corporation |
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AT572D940HF-CJ Datasheet(HTML) 31 Page - ATMEL Corporation |
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31 / 39 page  31 7010AS–DSP–07/07 AT572D940HF Preliminary 5.11.3 System Controller (SYSC) The SYSC includes the Reset Controller (RSTC) and the System Timers (SYST). The RSTC manages all system resets: external devices reset, processors reset and peripheral reset. The sources of reset can be: Power-On, Watch Dog, SW reset, External reset. The SYST features: • One 16-bit Period Interval Timer • One 12-bit key-protected Watchdog Timer • One 20-bit Free-running Real-time Timer 5.11.4 Power Management Controller (PMC) The PMC features two clock sources: Slow Clock Oscillator (32.768 Hz) and Main Oscillator (8 to 20 MHz). Two dividers, A and B, and two Phase Lock Loops, A and B, allow a wide range of frequencies to be generated from either the slow clock and/or the main clock. The PMC provides dedicated clocks toward: ARM926, the AHB Matrix, mAgicV, mAgicV Memo- ries, the USB, the Ethernet MAC and all Peripherals. 5.11.5 Advanced Interrupt Controller (AIC) The AIC features: • Controls the interrupt lines (nIRQ and nFIQ) of ARM926 • Thirty-two individually maskable and vectored interrupt sources • Programmable Edge-triggered or Level-sensitive Internal Sources • Programmable Positive/Negative Edge-triggered or High/Low Level sensitive PIO C [20] TWI 1 bi-directional: TWD SSC: TD3 (III) PIO C [21] TWI 1 bi-directional: TWCK SPI 1 output: CS3 (III) PIO C [22] MCI bidir: MCCK CAN 1: dout (II) PIO C [23] MCI bidir: MCCDA mAgicV output: M_SIRQ2 (III) PIO C [24] MCI bidir: MCDA0 EBI: SMOE (II) PIO C [25] MCI bidir: MCDA1 EBI: SMWE (II) PIO C [26] MCI bidir: MCDA2 EBI: NCS4/CFCS0 (II) PIO C [27] MCI bidir: MCDA3 EBI: NCS5/CFCS1 (II) PIO C [28] CAN 1: din EBI: NCS6 (II) PIO C [29] CAN 1: dout EBI: NCS7 (II) PIO C [30] DBGU input: DRXD EBI: CFCE1 (II) PIO C [31] DBGU output: DTXD EBI: CFCE2 (II) Table 5-8. PIO C Line Resource mapping (Continued) PIO C Periph INPUT A Periph OUTPUT A Periph INPUT B Periph OUTPUT B |
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