when power on and press below key:
- press PA1 key will enter boot code update mode. In this mode,
	1. it write physical sector only, and the start sector of HDCP tool must be 0~2047(0~15 physical blocks), otherwise the NAND flash will crach.
	2. LCM won't display. Press this key and power key, will entery this mode within 1 sec.
	3. if no boot code in boot code region(0~15 phycial blocks), program will enter this mode automatically.
	4. before the boot code is written, all of 16 physical blocks will be erase,
	5. this mode support upload function(physcial sector only), but the max data length is 8K byte(NUM of sectors must be 1~16)

- press PA0 key will enterfw upgrate mode. In this mode,
	1. only boot code is written in boot code region, this mode is available.
	2. can write physical and logical sector. When the start sector is 0~2047, the tool will write physcial sector, else  logical sector
	3. mode support upload function, but the max data length is 8K byte(NUM of sectors must be 1~16)

note:
	1. The PC tool "STHDCP.exe", the unit of Start Secotr is 2048 byte/sector, but the unit of NUM of Sectors is 512 byte/sector

	
2GB 4Kpage nand-flash		
bin_code_start_sec=0

			off_ps(hex)	adr(dec)
boot:	
	xboot.bin				Nx128 (N=0~31)

lib:
	ndfat.bin	0h		0
	sdfat.bin	118h		35
	xos.bin		230h		70
	appdesc.bin	250h		74
	xusb.bin	258h		75
	xmpl.bin	278h		79
	xapi.bin	ba0h		372
	xthd.bin	c70h		398
	xlrc.bin	c98h		403
	effect.bin	cb0h		406
	xlcm.bin	cd8h		411
	xkey.bin	d30h		422

app:
	app.bin		1008h		513

font:
	font.bin	2000h		1024
	exfont.bin	3000h		1792

image:
	a_clk.bin	3800h		2048
	sound.bin	3c00h		2176
	image.bin	4c00h		2688

iso:
	cd.iso				8192