Freescale Semiconductor MPC5604B - Page 683

MPC5604B/C Microcontroller Reference Manual, Rev. 8
672 Freescale Semiconductor
27.5.1.11 CFlash User Multiple Input Signature Register 2 (CFLASH_UMISR2)
The CFLASH_UMISR2 provides a means to evaluate the Array Integrity.
The CFLASH_UMISR2 represents the bits 95:64 of the whole 144 bits word (2 Double Words including
ECC).
The CFLASH_UMISR2 is not accessible whenever CFLASH_MCR[DONE] or CFLASH_UT0[AID] are
low: reading returns indeterminate data while writing has no effect.
Offset: 0x0004C Access: Read/write
0123456789101112131415
R
MS0[63:48]
W
Reset
0000000000000000
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
R
MS0[47:32]
W
Reset
0000000000000000
Figure 27-14. CFlash User Multiple Input Signature Register 1 (CFLASH_UMISR1)
Table 27-25. CFLASH_UMISR1 field descriptions
Field Description
MS0[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 CFLASH_UMISR1.