# BEE2 board specification																																	

# Real time clock																																

# Last Changes:																																	
# Pierre-Yves Droz	5/20/2004 1:49PM																																

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# Real time clock
add_blk	rtc	X1226	phz	vbk	smb_clk	smb_data	xtal1	xtal2	vcc	powergnd
def_param_blk	rtc	package	8SOIC	part_number	X1226S8	manufacturer	Xicor	www	http://www.xicor.com/pdf_files/x1226.pdf	description	IC RTC CLNDR OUTFREQ 4K EE 8SOIC	distributor	Digikey	order_number	X1226S8-ND	availability	non stock	address	0xAE/0xDE

# Periodic signal
add_net	ctrlfpga_33_period_int	1
add_con	out	rtc	phz	1	ctrlfpga_33_period_int	0
!! add_pullup_33	ctrlfpga_33_period_int

# Crystal
add_blk	rtc_xtal	CFS206	xtal1	xtal2
def_param_blk	rtc_xtal	package	custom	part_number	CFS206-32.768KDZBB	manufacturer	Citizen America Corporation	www	http://rocky.digikey.com/WebLib/Citizen/Web%20Data/CFS%20Series.PDF	description	CRYSTAL 32.768 KHZ CYL 6PF	distributor	Digikey	order_number	300-1000-ND	availability	non stock

add_net	rtc_xtal1	1
add_net	rtc_xtal2	1

add_con	analog	rtc_xtal	xtal1	1	rtc_xtal1	0
add_con	analog	rtc_xtal	xtal2	1	rtc_xtal2	0
add_con	analog	rtc		xtal1	1	rtc_xtal1	0
add_con	analog	rtc		xtal2	1	rtc_xtal2	0

# I2C
add_con	in	rtc	smb_clk	1	smb_33_clk	0
add_con	bidir	rtc	smb_data	1	smb_33_data	0

# Backup battery
add_blk	rtc_batt	BATT	p	m
def_param_blk	rtc_batt	package	custom	part_number	3000K	manufacturer	Keystone	www	http://www.keyelco.com/kec/pdfs/p08.pdf	description	HOLDER BATTERY COIN 12MM DIA SMD	distributor	Digikey	order_number	3000K-ND	availability	available

add_net	rtc_vbatt	1

add_con	pwr	rtc_batt	p	1	rtc_vbatt	0
add_con	gnd	rtc_batt	m	1	GND	0

add_con	pwr	rtc		vbk	1	rtc_vbatt	0

# Power
add_con	pwr	rtc	vcc		1	VCC3_3	0
add_con	gnd	rtc	powergnd	1	GND		0
!! add_bypass_hspeed_33 rtc 1