EM6517 ETC, EM6517 Datasheet - Page 11

• Manufacturer Part Number: EM6517
• Description: 4 BIT MICROCONTROLLER
• Manufacturer: ETC

Table 5.4.1 Watchdog Timer Register RegSysCntl2
Table 5.4.2 Watchdog Control Register RegSysCntl3
5.5
Reset initializes the CPU as shown in Table 5.5.1 below.
Table 5.5.1 Initial CPU Value after Reset.
Bit
3
2
1
0
Bit
3
2
1
0
Program counter 0
Program counter 1
Program counter 2
Periphery registers
Instruction register
CPU State after Reset
Index register
Stack pointer
Carry flag
Zero flag
Name
Halt
Name
WDReset
SleepEn
WDVal1
WDVal0
Name
Vref1/2Sel
--
NoOscWD
NoLogicWD
FOR ENGINEERING ONLY
Reset
0
0
0
0
Reset
0
0
0
0
Bits
12
12
12
16
2
7
1
1
1
4
R/W
R/W
R/W
R
R
R/W
R/W
R/W
R/W
R/W
Symbol
HALT
Reg.
PC0
PC1
PC2
CY
SP
IX
IR
Z
Description
Reset the Watchdog
1 -> Resets the Logic Watchdog
0 -> No action
The Read value is always ’0’
See Operating modes (sleep)
Watchdog timer data Ck[1] divided by 4
Watchdog timer data Ck[1] divided by 2
Description
Reference selection for the ADC
always reads 0
No oscillation supervisor
No logic watchdog
hex 000 (as a result of Jump 0)
See peripheral memory map
PSP[0] selected
© EM Microelectronic-Marin SA, 09/99, Rev. A/277
Initial Value
Undefined
Undefined
Undefined
Undefined
Undefined
Jump 0
0
EM6517
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