10.2 Basic System Clocks
SClock
The R4000 processor divides PClock by 2, 3, or 4 (as programmed at boot-mode initialization) to generate the internal clock signal, SClock. The R4400 processor divides PClock by 2, 3, 4, 6 or 8 (as programmed at boot-mode initialization) to generate SClock. The processor uses SClock to sample data at the system interface and to clock data into the processor system interface output registers.
The first rising edge of SClock, after ColdReset* is deasserted, is aligned with the first rising edge of MasterClock.
Copyright 1996, MIPS Technologies, Inc. -- 21 MAR 96
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