PXS20RM Datasheet, PDF (584/1368 Pages) Freescale Semiconductor, Inc – PXS20 Microcontroller

Flash Memory
Bit number
9
8–2
1
0
Table 23-22. User option bits (continued)
Function name
Description
LSM_DPMB
0 Selects single core/DPM
1 Selects LSM (default value)
Reserved
XOSC_MARGIN
XOSC oscillation margin select
0 Selects lower XOSC consumption and lower oscillator
margin
1 Selects higher XOSC consumption and higher
oscillator margin
WATCHDOG_ENABLE 0 Disable SWT
1 Enable SWT
The default states of the SWT modules depend on the value of the WATCHDOG_ENABLE and
LSM_DPMB bits as described in Table 23-23.
Table 23-23. SWT default states
LSM_DPMB (Mode)
1 (LS mode)
0 (DP mode)
WATCHDOG_ENABLE
1
0
1
0
SWT default state
Enable SWT_0
Enable SWT_1
Disable SWT_0
Disable SWT_1
Enable SWT_0
Disable SWT_1
Disable SWT_0
Disable SWT_1
23.1.8 Test flash memory
Test flash memory contains calibration and other chip-specific data. This information is summarized in
Table 23-24.
Table 23-24. Test flash information
Address
0x0000
0x0004
0x0008
0x000C
0x0010
0x0014
Word name
Function
Note
TSENS_0_CAL W2/W4
TSENS_1_CAL W2/W4
TSENS_0_CAL W1/W3
TSENS_1_CAL W1/W3
ADC0_CAL W1
ADC0_CAL W2
TSENS_0 Calibration data W2 (P2/PTAT) and W4 2x12bits words
(C2/CTAT) at cold temperature
TSENS_1 Calibration data W2 (P2/PTAT) and W4 2x12bits words
(C2/CTAT) at cold temperature
TSENS_0 Calibration data W1 (P2/PTAT) and W3 2x12bits words
(C2/CTAT) at hot temperature
TSENS_1 Calibration data W1 (P2/PTAT) and W3 2x12bits words
(C2/CTAT) at hot temperature
ADC0 Self-Test calibration
2x12bits words
ADC0 Self-Test calibration
2x12bits words
23-34
PXS20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor