W83791SD Datasheet, PDF(3/22 Page) Winbond

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W83791SD Datasheet, PDF (3/22 Pages) Winbond – H/W MONITORING IC

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W83791SD/W83791SG

Table of Contents-

1. GENERAL DESCRIPTION ......................................................................................................... 1

2. FEATURES ................................................................................................................................. 1

3. KEY SPECIFICATIONS .............................................................................................................. 2

4. PIN CONFIGURATION ............................................................................................................... 2

5. PIN DESCRIPTION..................................................................................................................... 3

6. FUNCTION DESCRIPTION ........................................................................................................ 4

6.1 Speech Function ............................................................................................................. 4

6.1.1 General Description..........................................................................................................4

6.1.2 Event Trigger Queue ........................................................................................................4

6.1.3 Connection of EEPROM...................................................................................................5

6.1.4 Speaker Output ................................................................................................................6

7. CONTROL AND STATUS REGISTER ....................................................................................... 6

7.1 Speech Flash Memory Address Registers ï£§ Index 00h-02h (Bank 0).......................... 6

7.2 Speech Flash Memory Data Registers ï£§ Index 03h-06h (Bank 0) ............................... 6

7.3 Event Trigger Timeout Register ï£§ Index 08h (Bank 0).................................................. 7

7.4 Speech Programmable Trigger Register ï£§ Index 09h (Bank 0).................................... 8

7.5 Speech Input Trigger Property Register ï£§ Index 0Ah (Bank 0) .................................... 8

7.6 Speech Flash Memory Read Data Registers ï£§ Index 0Dh-0Eh (Bank 0)..................... 8

7.7 User Defined Registers ï£§ Index 18h-1Ch (Bank 0)....................................................... 9

7.8 Speech Control Register 1 ï£§ Index 1Fh (Bank 0) ......................................................... 9

7.9 Serial Bus Address Register ï£§ Index 48h (Bank 0)....................................................... 9

7.10 Device ID ï£§ Index 49h (Bank 0) .................................................................................... 9

7.11 Disable Abnormal BEEP Control Register ï£§ Index 4Dh (Bank 0)............................... 10

7.12 High Byte Access ï£§ Index 4Eh (Bank 0) ..................................................................... 10

7.13 Winbond Vendor ID ï£§ Index 4Fh (Bank 0) .................................................................. 10

7.14 Winbond Test Register ï£§ Index 50h - 55h (Bank 0).................................................... 10

7.15 Chip ID -- Index 58h (Bank 0) ....................................................................................... 10

7.16 Speech Flash Memory Read Data Registers ï£§ Index A4h-A5h (Bank 0) ................... 11

7.17 Flash Page count ï£§ Index A7h (Bank 0) ..................................................................... 11

8. ELECTRICAL CHARACTERISTICS......................................................................................... 11

8.1 Absolute Maximum Ratings .......................................................................................... 11

8.2 DC Characteristics ........................................................................................................ 11

8.3 AC Characteristics ........................................................................................................ 13

8.3.1 Serial Bus Timing Diagram.............................................................................................13

9. HOW TO READ THE TOP MARKING...................................................................................... 14

10. PACKAGE SPECIFICATION .................................................................................................... 15

11. APPLICATION CIRCUITS ........................................................................................................ 16

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Publication Release Date: January 18, 2005

Revision 1.1

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