Datasheet

PIC32MZ Embedded Connectivity with Floating Point Unit (EF) Family
DS60001320B-page 388 Preliminary  2015 Microchip Technology Inc.
REGISTER 24-2: EBIMSKx: EXTERNAL BUS INTERFACE ADDRESS MASK REGISTER (‘x’ = 0-3)
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
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
— — — — — REGSEL<2:0>
7:0
R/W-0 R/W-0 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
MEMTYPE<2:0> MEMSIZE<4:0>
(1)
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 31-11 Unimplemented: Read as ‘0’
bit 10-8 REGSEL<2:0>: Timing Register Set for Chip Select ‘x’ bits
111 = Reserved
•
•
•
011 = Reserved
010 = Use EBISMT2
001 = Use EBISMT1
000 = Use EBISMT0
bit 7-5 MEMTYPE<2:0>: Select Memory Type for Chip Select ‘x’ bits
111 = Reserved
•
•
•
011 = Reserved
010 = NOR-Flash
001 = SRAM
000 = Reserved
bit 4-0 MEMSIZE<4:0>: Select Memory Size for Chip Select ‘x’ bits
(1)
11111 = Reserved
•
•
•
01010 = Reserved
01001 = 16 MB
01000 = 8 MB
00111 = 4 MB
00110 = 2 MB
00101 = 1 MB
00100 = 512 KB
00011 = 256 KB
00010 = 128 KB
00001 = 64 KB (smaller memories alias within this range)
00000 = Chip Select is not used
Note 1: The specified value for these bits depends on the number of available address lines. Refer to the specific
device pin table (Table 2 through Table 5) for the available address lines.