Freescale Semiconductor e200z3, Справочное руководство

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Register Model
e200z3 Power Architecture Core Reference Manual, Rev. 2
Freescale Semiconductor 2-79
accumulation. PSCR[INIT] may also be used to clear the PSHR. PSHR is unaffected by system reset, thus
should be initialized by software before performing parallel signature operations.
Figure 2-57. Parallel Signature High Register (PSHR)
2.19.4 Parallel Signature Low Register (PSLR)
PSLR, shown in Figure 2-58 , provides signature information for the low word (bits 31-0) of the AHB data
read and data write buses. Writing PSLR initializes a seed value prior to enabling signature accumulation.
PSCR[INIT] can also be used to clear the PSLR. PSLR is unaffected by system reset, thus should be
initialized by software prior to performing parallel signature operations.
Figure 2-58. Parallel Signature Low Register (PSLR)
2.19.5 Parallel Signature Counter Register (PSCTR)
PSCTR, shown in Figure 2-59 , provides count information for signature accumulation. It is incremented
on every accumulated transfer or on an mtdcr psulr,rS. Writing to PSCTR initializes a value before
enabling signature accumulation. PSCR[INIT] can also be used to clear PSCTR. PSCTR is unaffected by
system reset, thus should be initialized by software before performing parallel signature operations.
.
Figure 2-59. Parallel Signature Counter Register (PSCTR)
32 63
Field High signature
Reset Unaffected
R/W R/W
DCR DCR 274
32 63
Field Low signature
Reset Unaffected
R/W R/W
DCR DCR 275
32 63
Field Counter
Reset Unaffected
R/W R/W
DCR DCR 276