Fujitsu MB9B500 Series Nand Flash, 4.3 RTC, „ Hardware Setting None „ Flowchart, „ Usage

4.2 Nand Flash

„Hardware Setting None

„Flowchart

Start
Initial external bus	Erase page 11 of	Erase page 20 of
(Use CS7 area,
	block 0	block 100
8 bit data width)
Read Flash ID	Write data into	Write data into page
	page 11 of block 0	20 of block 100
	Read data from	Read data from page
	page 11 of block 0	20 of block 100
		End

Figure 4-4: Nand Flash Sample Code Flowchart

„Usage

1)Open Nand Flash sample project, and start debug.

2)Use “step over” to debug, and watch local variable “flash_id”, “buf”.

4.3 RTC

„Hardware Setting

It is an option that user can user external battery to supply power for RTC module (RX8025-T) so that the date and time can be stored after system power shut down.

„	Flowchart
	Start
	Initial MFS channel 5	Write 0 to second register	Read to second register
	(set IIC mode)
	Enable FOE signal	Write 30 to minute register	Read to minute register
	(FOUT output 32.768khz
	wave after it is enabled)
		Write 8 to hour register	Read to hour register

Figure 4-5: RTC Sample Code Flowchart

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