PC87591L datasheet(19/437 Pages) NSC

19 / 437 page

Table of Contents (Continued)

Revision 1.07

www.national.com

Shared Memory Base Address High Byte Register ........................................... 351

Shared Memory Base Address Low Byte Register ............................................ 352

Shared Memory Size Configuration Register .................................................... 352

6.1.12

Real Time Clock (RTC) Configuration ....................................................................... 353

Logical Device 16 (1016) RTC Configuration ..................................................... 353

RAM Lock Register (RLR) ................................................................................. 353

Date Of Month Alarm Register Offset (DOMAO) ............................................... 354

Month Alarm Register Offset (MONAO) ............................................................ 354

Century Register Offset (CENO) ....................................................................... 354

6.1.13

Power Management Interface Channel 1 Configuration ............................................ 355

Logical Device 17 (1116) Power Management Channel 1 ................................. 355

6.1.14

Power Management Interface Channel 2 Configuration ............................................ 355

Logical Device 18 (1216) Power Management Channel 2 ................................. 355

6.2

REAL-TIME CLOCK (RTC) ..................................................................................................... 356

6.2.1

Bus Interface ............................................................................................................. 356

6.2.2

RTC Clock Generation .............................................................................................. 356

6.2.3

Internal Oscillator ....................................................................................................... 356

6.2.4

External Oscillator ..................................................................................................... 357

Connections ....................................................................................................... 357

Signal Parameters ............................................................................................. 358

6.2.5

Timing Generation ..................................................................................................... 358

6.2.6

Timekeeping .............................................................................................................. 358

6.2.7

Updating .................................................................................................................... 359

6.2.8

Alarms ....................................................................................................................... 359

6.2.9

Power Supply ............................................................................................................ 360

6.2.10

System Bus Lockout .................................................................................................. 361

6.2.11

Power-Up Detection .................................................................................................. 361

6.2.12

Oscillator Activity ....................................................................................................... 362

6.2.13

Interrupt Handling ...................................................................................................... 362

6.2.14

Battery-Backed RAMs and Registers ........................................................................ 363

6.2.15

RTC Registers ........................................................................................................... 363

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

6.2.16

BCD and Binary Formats ........................................................................................... 371

PC87591L 数据表(PDF) 19 Page - National Semiconductor (TI)

PC87591L 数据表(HTML) 19 Page - National Semiconductor (TI)

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载