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C515A_9708 Datasheet(PDF) 5 Page - Siemens Semiconductor Group

Part # C515A_9708
Description  8-Bit CMOS Microcontroller
Download  182 Pages
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Manufacturer  SIEMENS [Siemens Semiconductor Group]
Direct Link  http://www.siemens.com/
Logo SIEMENS - Siemens Semiconductor Group

C515A_9708 Datasheet(HTML) 5 Page - Siemens Semiconductor Group

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Semiconductor Group
I-3
1997-08-01
Table of Contents
Page
General Information
C515A
8
Fail Safe Mechanisms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
8.1
Programmable Watchdog Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
8.1.1
Input Clock Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-2
8.1.2
Watchdog Timer Control / Status Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3
8.1.3
Starting the Watchdog Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-4
8.1.3.1
The First Possibility of Starting the Watchdog Timer . . . . . . . . . . . . . . . . . . . . . . . . . .8-4
8.1.3.2
The Second Possibility of Starting the Watchdog Timer . . . . . . . . . . . . . . . . . . . . . . .8-4
8.1.4
Refreshing the Watchdog Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5
8.1.5
Watchdog Reset and Watchdog Status Flag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5
8.2
Oscillator Watchdog Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-6
8.2.1
Description of the Oscillator Watchdog Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-7
8.2.2
Fast Internal Reset after Power-On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9
9
Power Saving Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1
9.1
Power Saving Mode Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1
9.2
Idle Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-3
9.3
Slow Down Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-5
9.4
Software Power Down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6
9.4.1
Invoking Software Power Down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6
9.4.2
Exit from Software Power Down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-7
9.5
State of Pins in Software Initiated Power Saving Modes . . . . . . . . . . . . . . . . . . . . . . .9-8
9.6
Hardware Power Down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-9
9.7
Hardware Power Down Reset Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-11
10
Device Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-1
10.1
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-1
10.2
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-2
10.3
A/D Converter Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-5
10.4
AC Characteristics (18 MHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-7
10.5
AC Characteristics (24 MHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-9
10.6
ROM Verification Characteristics for the C515A . . . . . . . . . . . . . . . . . . . . . . . . . . .10-14
10.7
Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-17
11
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-1


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