SDA5252 SIEMENS [Siemens Semiconductor Group], SDA5252 Datasheet - Page 115

• Manufacturer Part Number: SDA5252
• Description: TVTEXT 8-Bit Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

ADC-Data Register ADDAT
ADC-Data Register
Default after reset: undefined
AD (7-0)
6.3.13
Advanced Function Register
Default after reset: 00xxxxxxB
CDC
WDT
AFR.0 – AFR.5
The machine cycle time is controlled by bit CDC too. For CDC = 1 a machine cycle
consists of 12 oscillator cycles and for CDC = 0 of six oscillator cycles (see Figure 14).
Semiconductor Group
(MSB)
(MSB)
CDC
AD7
Advanced Function Register
WDT
AD6
AD5
8-Bit Analog Data Value
Clock divider control bit. If set, the clock divider is on. The
internal clock frequency is half the external oscillator
frequency. If cleared, the clock divider is off. The internal clock
frequency is equal to the external oscillator frequency. This
feature can be used to reduce power dissipation by reducing
the internal clock frequency by a factor of two.
See Chapter “Watchdog Timer” on page 87.
Reserved, always to be written with ‘0’.
0
AD4
0
ADDAT
AFR
115
AD3
0
AD2
0
SFR-Address D9
SFR-Address A6
AD1
0
SDA 525x
1998-04-08
(LSB)
(LSB)
AD0
0
H
H