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
Copyright © 2011–2013, Texas Instruments Incorporated