pcf8583 NXP Semiconductors, pcf8583 Datasheet - Page 10

• Manufacturer Part Number: pcf8583
• Description: Clock/calendar With 240 X 8-bit Ram
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1997 Jul 15
handbook, full pagewidth
Clock/calendar with 240
MSB
7
MRB005
6
Fig.8 Alarm control register; clock mode.
5
8-bit RAM
4
3
2
10
1
LSB
0
memory location 08
reset state: 0000 0000
timer function :
000
001
010
011
100
101
110
111
timer interrupt enable :
0
1
clock alarm function :
00
01
10
11
timer alarm enable :
0
1
alarm interrupt enable :
(valid only when 'alarm enable' in
control / status register is set
0
1
no timer alarm
timer alarm
alarm flag, no interrupt
alarm flag, interrupt
no timer
hundredths of a second
seconds
minutes
hours
days
not used
test mode, all counters
in parallel (factory use only)
timer flag, no interrupt
timer flag, interrupt
no clock alarm
daily alarm
weekday alarm
dated alarm
Product specification
PCF8583