XC2220U Datasheet, PDF (76/105 Pages) Infineon Technologies AG – 16/32-Bit Single-Chip Microcontroller with 32-Bit Performance

XC2220U
XC2000 Family / Compact Line
Electrical Parameters
Coding of bit fields LEVxV in SWD Configuration Registers
After power-on the supply watch dog is preconfigured to operate in the lower voltage
range.
Table 25 Coding of bit fields LEVxV in Register SWDCON0
Code
Default Voltage Level Notes¹⁾
0000_B
-
out of valid operation range
0001_B
3.0 V
LEV1V: reset request
0010_B - 0101_B 3.1 V - 3.4 V
step width is 0.1 V
0110_B
3.6 V
0111_B
4.0 V
1000_B
4.2 V
1001_B
4.5 V
LEV2V: no request
1010_B - 1110_B 4.6 V - 5.0 V
step width is 0.1 V
1111_B
5.5 V
1) The indicated default levels are selected automatically after a power reset.
Coding of bit fields LEVxV in PVC Configuration Registers
The core voltages are controlled internally to the nominal value of 1.5 V; a variation of
±10 % is allowed. These operation conditions limit the possible PVC monitoring values
to the predefined reset values shown in Table 26.
Table 26 Coding of bit fields LEVxV in Registers PVCyCONz
Code
Default Voltage Level Notes¹⁾
000_B - 011_B
-
out of valid operation range
100_B
101_B
1.35 V
1.45 V
LEV1V: reset request
LEV2V: interrupt request²⁾
110_B - 111_B
-
out of valid operation range
1) The indicated default levels are selected automatically after a power reset.
2) Due to variations of the tolerance of both the Embedded Voltage Regulators (EVR) and PVC levels, this
interrupt can be triggered inadvertently, even though the core voltage is within the normal range. It is,
therefore, recommended not to use this warning level.
Data Sheet
72
V1.2, 2012-07