Datasheet

 2009-2013 Microchip Technology Inc. DS60001156H-page 151
PIC32MX5XX/6XX/7XX
REGISTER 9-4: CHEMSK: CACHE TAG MASK REGISTER
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31:24
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
23:16
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
15:8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
LMASK<10:3>
7:0
R/W-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0
LMASK<2:0> — — — — —
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 31-16 Unimplemented: Write ‘0’; ignore read
bit 15-5 LMASK<10:0>: Line Mask bits
1 = Enables mask logic to force a match on the corresponding bit position in LTAG<19:0> bits
(CHETAG<23:4>) and the physical address
0 = Only writeable for values of CHEIDX<3:0> bits (CHEACC<3:0>) equal to 0x0A and 0x0B
(disables mask logic)
bit 4-0 Unimplemented: Write ‘0’; ignore read
REGISTER 9-5: CHEW0: CACHE WORD 0
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31:24
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
CHEW0<31:24>
23:16
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
CHEW0<23:16>
15:8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
CHEW0<15:8>
7:0
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
CHEW0<7:0>
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 31-0 CHEW0<31:0>: Word 0 of the cache line selected by CHEIDX<3:0> bits (CHEACC<3:0>)
Readable only if the device is not code-protected.