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CHAPTER 3 CLOCK GENERATOR AND CONTROLLER
3.1 Outline of Clock Generator and Controller
The clock generator and controller are the modules that have the following functions:
• CPU clock generation (including the gear function)
• Peripheral clock generation (including the gear function)
• Reset generation and cause retention
• Standby function
• Suppression of DMA request
• Built-in PLL (frequency multiplier circuit)
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Registers of Clock Generator and Controller
Figure 3.1.1 shows the registers of the clock generator and controller.
Figure 3.1-1 Clock Generator and Controller Registers
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
RSRR/WTCR STCR
PDRR CTBR
GCR WPR
PCTR