MA240017 Microchip Technology, MA240017 Datasheet - Page 29

• Manufacturer Part Number: MA240017
• Description: MODULE PLUG-IN PIC24F16KA102 PIM
• Manufacturer: Microchip Technology
• Series: PIC®r

Specifications of MA240017

• Accessory Type: Plug-In Module (PIM) - PIC24F16KA102
• Product: Microcontroller Modules
• Data Bus Width: 16 bit
• Core Processor: PIC24F16KA102
• Operating Supply Voltage: 3 V to 3.6 V
• Development Tools By Supplier: Integrated Development Environment, Assembler, ANSI C Compiler
• Processor Series: PIC24F
• Silicon Manufacturer: Microchip
• Core Architecture: PIC
• Core Sub-architecture: PIC24
• Silicon Core Number: PIC24F
• Silicon Family Name: PIC24FxxKAxx
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: Explorer 16 (DM240001 or DM240002)
• For Use With: DM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

4.2
The PIC24F core has a separate, 16-bit wide data
memory space, addressable as a single linear range.
The data space is accessed using two Address
Generation Units (AGUs), one each for read and write
operations. The data space memory map is displayed
in Figure 4-3.
All Effective Addresses (EAs) in the data memory space
are 16 bits wide and point to bytes within the data space.
This gives a data space address range of 64 Kbytes or
32K words. The lower half of the data memory space
(that is, when EA<15> = 0) is used for implemented
memory addresses, while the upper half (EA<15> = 1) is
reserved for the Program Space Visibility (PSV) area
(see Section 4.3.3 “Reading Data From Program
Memory Using Program Space Visibility”).
PIC24F16KA102 family devices implement a total of
768 words of data memory. Should an EA point to a
location outside of this area, an all zero word or byte will
be returned.
FIGURE 4-3:
© 2009 Microchip Technology Inc.
Note:
Data Address Space
Data memory areas are not shown to scale.
Implemented
Data RAM
DATA SPACE MEMORY MAP FOR PIC24F16KA102 FAMILY DEVICES
Address
0DFFh
7FFFh
FFFFh
07FFh
0001h
0801h
8001h
MSB
1FFF
MSB
Unimplemented
Program Space
Preliminary
Visibility Area
SFR Space
Read as ‘0’
Data RAM
PIC24F16KA102 FAMILY
LSB
4.2.1
The
byte-addressable, 16-bit wide blocks. Data is aligned in
data memory and registers as 16-bit words, but all the
data space EAs resolve to bytes. The Least Significant
Bytes (LSBs) of each word have even addresses, while
the Most Significant Bytes (MSBs) have odd
addresses.
data
Address
0000h
07FEh
0800h
0DFEh
1FFEh
7FFFh
8000h
FFFEh
LSB
DATA SPACE WIDTH
memory
Space
SFR
space
Data Space
Near
is
DS39927B-page 27
organized
in