SAB80C515A-5 SIEMENS [Siemens Semiconductor Group], SAB80C515A-5 Datasheet - Page 46
![no-image](/images/no-image-200.jpg)
SAB80C515A-5
Manufacturer Part Number
SAB80C515A-5
Description
8-Bit CMOS Single-Chip Microcontroller Family
Manufacturer
SIEMENS [Siemens Semiconductor Group]
Datasheet
1.SAB80C515A-5.pdf
(108 pages)
- Current page: 46 of 108
- Download datasheet (2Mb)
Special Function Register WDTREL (Address 086 H )
Bit No.
Bit
WDTREL.7
WDTREL.6
to
WDTREL.0
Reset value of WDTREL is 00 H .
Immediately after start (see next section for start procedure), the Watchdog Timer is initialized to
the reload value programmed to WDTREL.0-WDTREL.6. After an external HW reset (or power-on
reset, or HW Power Down) register WDTREL is cleared to 00 H . The lower seven bits of WDTREL
can be loaded by software at any time.
Examples (given for 12 and 18 MHz oscillator frequency):
WDTREL
00 H
80 H
7F H
Semiconductor Group
086 H
MSB
7
Function
Prescaler select bit.
When set, the watchdog timer is clocked through an additional divide-by-16
prescaler (see figure 12).
Seven bit reload value for the high-byte of the watchdog timer.
This value is loaded to the WDT when a refresh is triggered by a consecutive
setting of bits WDT and SWDT.
f
65.535 ms
1.1 s
512 s
OSC
6
= 12 MHz
Time-out Period
Watchdog Timer Reload Register
5
f
43.690 ms
0.73 s
341 s
OSC
4
= 18 MHz
5-13
3
On-Chip Peripheral Components
Comments
This is the default value and coincides
with the watchdog period of the SAB
80C515
maximum time period
minimum time period
2
1
LSB
0
WDTREL
Related parts for SAB80C515A-5
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![S80C32-12](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
Intel 80C32 - Siemens SAB-C501, Nearest Equivalent Replacement
Manufacturer:
Siemens Semiconductor Group
![BAT14-033](/images/no-image3.png)
Part Number:
Description:
HiRel Silicon Schottky Diode (HiRel Discrete and Microwave Semiconductor Medium barrier diodes for detector and mixer applications)
Manufacturer:
SIEMENS [Siemens Semiconductor Group]
Datasheet:
![BXY43-P1](/images/no-image3.png)
Part Number:
Description:
HiRel Silicon PIN Diode (HiRel Discrete and Microwave Semiconductor Current controlled RF resistor for RF attenuators and switches)
Manufacturer:
SIEMENS [Siemens Semiconductor Group]
Datasheet:
![BXY44-T1](/images/no-image3.png)
Part Number:
Description:
HiRel Silicon PIN Diode (HiRel Discrete and Microwave Semiconductor Current controlled RF resistor for RF attenuators and switches)
Manufacturer:
SIEMENS [Siemens Semiconductor Group]
Datasheet:
![IRL80](/images/no-image3.png)
Part Number:
Description:
GaAs-Infrarot-Sendediode GaAs Infrared Emitter
Manufacturer:
SIEMENS [Siemens Semiconductor Group]
Datasheet:
![IRL81](/images/no-image3.png)
Part Number:
Description:
GaAlAs-Infrarot-Sendediode GaAlAs Infrared Emitter
Manufacturer:
SIEMENS [Siemens Semiconductor Group]
Datasheet:
![BSM50GB100D](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
IGBT MODULE
Manufacturer:
Siemens Semiconductor Group
Datasheet:
![BSM181R](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
SIMOPAC Module (Power module Single switch N channel Enhancement mode)
Manufacturer:
Siemens Semiconductor Group
Datasheet:
![BSM254F](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
(BSMxxx) TRANSISTOR
Manufacturer:
Siemens Semiconductor Group
Datasheet:
![BSM111AR](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
SIMOPAC Module (Power module Single switch N channel Enhancement mode)
Manufacturer:
Siemens Semiconductor Group
Datasheet:
![BUZ48](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
main ratings
Manufacturer:
Siemens Semiconductor Group
Datasheet:
![TDA4716C](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
Manufacturer:
Siemens Semiconductor Group
Datasheet:
![DL440M](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
Manufacturer:
Siemens Semiconductor Group
Datasheet:
![SDA5255](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
Manufacturer:
Siemens Semiconductor Group
Datasheet: