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PIC32MX330 Datasheet(PDF) 91 Page - Microchip Technology

Part # PIC32MX330
Description  32-bit Microcontrollers (up to 512 KB Flash and 128 KB SRAM) with Audio/Graphics/Touch (HMI), USB, and Advanced Analog
PDF  344 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC32MX330 Datasheet(HTML) 91 Page - Microchip Technology

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 2012-2013 Microchip Technology Inc.
Preliminary
DS60001185B-page 91
PIC32MX330/350/370/430/450/470
REGISTER 4-5:
BMXDRMSZ: DATA RAM SIZE 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
RR
R
R
R
R
R
R
BMXDRMSZ<31:24>
23:16
RR
R
R
R
R
R
R
BMXDRMSZ<23:16>
15:8
RR
R
R
R
R
R
R
BMXDRMSZ<15:8>
7:0
RR
R
R
R
R
R
R
BMXDRMSZ<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
BMXDRMSZ<31:0>:
Data RAM Memory (DRM) Size bits
Static value that indicates the size of the Data RAM in bytes:
0x00004000 = device has 16 KB RAM
0x00008000 = device has 32 KB RAM
0x00010000 = device has 64 KB RAM
0x00020000 = device has 128 KB RAM
REGISTER 4-6:
BMXPUPBA: PROGRAM FLASH (PFM) USER PROGRAM BASE ADDRESS
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
R/W-0
R/W-0
R/W-0
R/W-0
—
—
—
—
BMXPUPBA<19:16>
15:8
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R-0
R-0
R-0
BMXPUPBA<15:8>
7:0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
BMXPUPBA<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 31-20 Unimplemented: Read as ‘0’
bit 19-11 BMXPUPBA<19:11>: Program Flash (PFM) User Program Base Address bits
bit 10-0
BMXPUPBA<10:0>:
Read-Only bits
Value is always ‘0’, which forces 2 KB increments
Note 1:
At Reset, the value in this register is forced to zero, which causes all of the RAM to be allocated to Kernal
mode data usage.
2:
The value in this register must be less than or equal to BMXPFMSZ.



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