Freescale Semiconductor MPC5604B - Page 711

MPC5604B/C Microcontroller Reference Manual, Rev. 8
700 Freescale Semiconductor
27.5.2.11 DFlash User Multiple Input Signature Register 2 (DFLASH_UMISR2)
The DFLASH_UMISR2 provides a mean to evaluate the Array Integrity.
The DFLASH_UMISR2 represents the bits 95:64 of the whole 144 bits word (2 Double Words including
ECC).
The DFLASH_UMISR2 is not accessible whenever DFLASH_MCR[DONE] or DFLASH_UT0[AID] are
low: reading returns indeterminate data while writing has no effect.
Address offset: 0x0004C Reset value: 0x0000_0000
0123456789101112131415
R
MS[63:48]
W
Reset
0000000000000000
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
R
MS[47:32]
W
Reset
0000000000000000
Figure 27-34. DFlash User Multiple Input Signature Register 1 (DFLASH_UMISR1)
Table 27-50. DFLASH_UMISR1 field descriptions
Field Description
MS[63:32] Multiple input Signature, bits 63-32
These bits represent the MISR value obtained accumulating the bits 63:32 of all the pages read from
the flash memory.
The MS can be seeded to any value by writing the DFLASH_UMISR1.