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GPMC
7.1.5.24 GPMC_PREFETCH_STATUS
Figure 7-74. GPMC_PREFETCH_STATUS
31 30 24 23 17 16
Rsvd FIFOPOINTER Reserved FIFOTHRESHOLDSTATUS
R-0 R-0 R-0 R-0
15 14 13 0
Reserved COUNTVALUE
R-0 R-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 7-78. GPMC_PREFETCH_STATUS Field Descriptions
Bit Field Value Description
31 Reserved 0 Reserved
30-24 FIFOPOINTER
0 0 byte available to be read or 0 free empty place to be written
⋮ ⋮
40h 64 bytes available to be read or 64 empty places to be written
23-17 Reserved 0 Reserved
16 FIFOTHRESHOLDSTATUS Set when FIFOPointer exceeds FIFOThreshold value
0 FIFOPointer smaller or equal to FIFOThreshold. Writing to this bit has no effect
1 FIFOPointer greater than FIFOThreshold. Writing to this bit has no effect
15-14 Reserved 0 Reserved
13-0 COUNTVALUE Number of remaining bytes to be read or to be written by the engine according to
the TransferCount value
0 0 byte remaining to be read or to be written
1h 1 byte remaining to be read or to be writte
⋮ ⋮
2000h 8 Kbytes remaining to be read or to be written
389
SPRUH73H–October 2011–Revised April 2013 Memory Subsystem
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