CY82C693UB Cypress Semiconductor Corporation., CY82C693UB Datasheet - Page 102

• Manufacturer Part Number: CY82C693UB
• Description: Hypercache Tm / Stand-alone Pci Peripheral Controller With Usb
• Manufacturer: Cypress Semiconductor Corporation.

RTC Register 7: Day-of-the-Month Byte (Read/Write)
RTC Register 8: Month Byte (Read/Write)
RTC Register 9: Year Byte (Read/Write)
RTC Register 10: Control/Status Register A (Read/Write except for bit 7 which is Read Only)
Bit
7:0
Bit
7:0
Bit
7:0
Bit
7
6:4
3:0
Function
BCD representation of day-of-the-month (must be in the range 01–31)
Function
BCD representation of month (must be in the range 01–12)
Function
BCD representation of year (must be in the range 00–99)
Function
Update In Progress (UIP):
0:
1:
This bit can be cleared by writing a 1 to bit 7 of RTC register 11.
Divider/Prescaler on the RTC:
000:
001:
010:
1XX:
Periodic Interrupt Rate Control:
0000:
0001:
0010:
0011:
0100:
0101:
0110:
0111:
1000:
1001:
1010:
1011:
1100:
1101:
1110:
1111:
There is no clock update about to occur (guaranteed for 244 s)
An update cycle is about to occur or is occurring. Data read from the clock words
will be invalid. This bit goes high 244 s prior to an update and remains active for
an additional 2 ms after the update begins.
4.194304 MHz Oscillator
1.048576 MHz Oscillator
32.768 kHz Oscillator (Recommended Setting)
Reset Divider
32.768-KHz Oscillator Other Frequencies
No Periodic Interrupts No Periodic Interrupts
3.90526 ms
7.8125 ms
122.070 s
244.141 s
488.281 s
976.562 s
1.953125 ms
3.90625 ms
7.8125 ms
15.625 ms
31.25 ms
62.5 ms
125 ms
250 ms
500 ms
PRELIMINARY
Index=09H
Index=08H
30.517 s
61.035 s
122.070 s
244.141 s
488.281 s
976.562 s
1.953125 ms
3.90625 ms
7.8125 ms
15.625 ms
31.25 ms
62.5 ms
125 ms
250 ms
500 ms
Index=07H
102
CY82C693UB
Index=0AH
Default
00000000
Default
00000000
Default
00000000
Default
0
000
0000