The Education of MassiveProng (Pt 3 of 275) (001/634) (105/634)



Also in interrupt controllers 914 is an interrupt router that routes
an external interrupt from bus 104 or an interrupt from PCU 112 to a
software-selectable interrupt channel. In PPU 110 interrupt
controllers 914 and a timer/counter 916 connect to bus 104 and also
pin out externally to 9 pins and 2 pins respectively. An RTC (real
time clock) circuit block 918 has an integrated low-power 32 kHz.
oscillator and a 128 byte CMOS SRAM (static RAM). Examples of some
features and circuitry which are useful in DMA controllers 910,
interrupt controllers 914, timer-counter 916 and RTC circuit 918 are
.



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