Fujitsu F202RA manual Configuration of 12-bit PPG Timer Circuit, Block Diagram of 12-bit PPG Timer

CHAPTER 9 12-BIT PPG TIMER

9.2Configuration of 12-bit PPG Timer Circuit

The 12-bit PPG timer comprises the following seven blocks:

•Count clock selector

•12-bit counter

•Comparator

•12-bit PPG control register 1 (RCR21)

•12-bit PPG control register 2 (RCR22)

•12-bit PPG control register 3 (RCR23)

•12-bit PPG control register 4 (RCR24)

■Block Diagram of 12-bit PPG Timer

Figure 9.2-1 Block Diagram of 12-bit PPG Timer

					Internal data bus
RCK1	RCK0		HSC5	HSC4	HSC3 HSC2 HSC1 HSC0 RCR21
					HSC11 HSC10		HSC9	HSC8	HSC7	HSC6	RCR22
Count					Compare value for "H" width
clock					12
selector
			12-bit counter
2					Comparator				P37/BZ/PPG pin
4		CLK
16			Clear
256
1t INST
					12
					Compare value for cycle period
					SCL11 SCL10		SCL9	SCL8	SCL7	SCL6	RCR24
RCEN			SCL5	SCL4	SCL3 SCL2 SCL1 SCL0	RCR23
					Internal data bus
tINST : Instruction cycle
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