NXP Semiconductors MPC5606S - Non-Volatile User Options Register (NVUSRO)

Flash Memory
MPC5606S Microcontroller Reference Manual, Rev. 7
Freescale Semiconductor 583
17.2.6.27 Non-Volatile User Options register (NVUSRO)
The Non-volatile User Options Register contains configuration information for the user application.
The NVUSRO register is a 64-bit register, the 32 most significant bits of which (bits 63-32) are ‘don’t care’
and eventually used to manage ECC codes.
The availability of this register is SoC dependent.
Address Offset: 0x203E18 Delivery value: 0xXXXXXXXX
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
UO31 UO30 UO29 UO28 UO27 UO26 UO25 UO24 UO23 UO22 UO21 UO20 UO19 UO18 UO17 UO16
rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
UO15 UO14 UO13 UO12 UO11 UO10 UO09 UO08 UO07 UO06 UO05 UO04 UO03
PAD 3V 5V
OSCILLATOR
_MARGIN
WATCHDOG_EN
rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X rw/X
Figure 17-25. Non-volatile User Options register (NVUSRO)
Table 17-35. NVUSRO field descriptions
Field Description
0:28 UO31-03: User Options 31-03 (Read/Write)
The UO31-03 generic registers are reset based on the information stored in NVUSRO.
The use of this bus is SoC specific.
2 PAD3V5V
0: High voltage supply is 5.0 V
1: High voltage supply is 3.3 V
Default manufacturing value before flash initialization is 1 (3.3 V) which should ensure correct min slope
for boundary scan.
1 OSCILLATOR_MARGIN
0: Low consumption configuration (4 MHz / 8 MHz)
1: High margin configuration (4/16 MHz)
Default manufacturing value before flash initialization is 1
0 WATCHDOG_EN
0: Disable after reset
1: Enable after reset
Default manufacturing value before flash initialization is 1.
If the device undergoes a non-destructive reset, the behavior of SWT after reset will again be controlled
by this field. Any change in the value of this field will take effect only after the device goes through a
Phase
0 (destructive reset sequence).