pc87591l National Semiconductor Corporation, pc87591l Datasheet - Page 19

• Manufacturer Part Number: pc87591l
• Description: Lpc Mobile Embedded Controllers
• Manufacturer: National Semiconductor Corporation

Revision 1.07
Table of Contents
6.2
6.1.12
6.1.13
6.1.14
REAL-TIME CLOCK (RTC) ..................................................................................................... 356
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
6.2.7
6.2.8
6.2.9
6.2.10
6.2.11
6.2.12
6.2.13
6.2.14
6.2.15
6.2.16
Real Time Clock (RTC) Configuration ....................................................................... 353
Power Management Interface Channel 1 Configuration ............................................ 355
Power Management Interface Channel 2 Configuration ............................................ 355
Bus Interface ............................................................................................................. 356
RTC Clock Generation .............................................................................................. 356
Internal Oscillator ....................................................................................................... 356
External Oscillator ..................................................................................................... 357
Timing Generation ..................................................................................................... 358
Timekeeping .............................................................................................................. 358
Updating .................................................................................................................... 359
Alarms ....................................................................................................................... 359
Power Supply ............................................................................................................ 360
System Bus Lockout .................................................................................................. 361
Power-Up Detection .................................................................................................. 361
Oscillator Activity ....................................................................................................... 362
Interrupt Handling ...................................................................................................... 362
Battery-Backed RAMs and Registers ........................................................................ 363
RTC Registers ........................................................................................................... 363
BCD and Binary Formats ........................................................................................... 371
(Continued)
Shared Memory Base Address High Byte Register ........................................... 351
Shared Memory Base Address Low Byte Register ............................................ 352
Shared Memory Size Configuration Register .................................................... 352
Logical Device 16 (10
RAM Lock Register (RLR) ................................................................................. 353
Date Of Month Alarm Register Offset (DOMAO) ............................................... 354
Month Alarm Register Offset (MONAO) ............................................................ 354
Century Register Offset (CENO) ....................................................................... 354
Logical Device 17 (11
Logical Device 18 (12
Connections ....................................................................................................... 357
Signal Parameters ............................................................................................. 358
Seconds Register (SEC) .................................................................................... 364
Seconds Alarm Register (SECA) ....................................................................... 365
Minutes Register (MIN) ...................................................................................... 365
Minutes Alarm Register (MINA) ......................................................................... 365
Hours Register (HOR) ....................................................................................... 365
Hours Alarm Register (HORA) ........................................................................... 366
Day Of Week Register (DOW) ........................................................................... 366
Date Of Month Register (DOM) ......................................................................... 366
Month Register (MON) ....................................................................................... 366
Year Register (YER) .......................................................................................... 367
RTC Control Register A (CRA) .......................................................................... 367
RTC Control Register B (CRB) .......................................................................... 368
RTC Control Register C (CRC) .......................................................................... 369
RTC Control Register D (CRD) .......................................................................... 370
Date of Month Alarm Register (DOMA) ............................................................. 370
Month Alarm Register (MONA) .......................................................................... 370
Century Register (CEN) ..................................................................................... 371
16
16
16
) RTC Configuration ..................................................... 353
) Power Management Channel 1 ................................. 355
) Power Management Channel 2 ................................. 355
19
www.national.com