MA160014 Microchip Technology, MA160014 Datasheet - Page 69

• Manufacturer Part Number: MA160014
• Description: MOD PLUG-IN 44PIN PIC18LF45K22
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of MA160014

• Accessory Type: Plug-In Module (PIM) - PIC18LF45K10
• Product: Microcontroller Modules
• Data Bus Width: 8 bit
• Core Processor: PIC18LF45K22
• Interface Type: I2C, SPI
• Operating Supply Voltage: 1.8 V to 5.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PICDEM PIC18 Explorer, DM183032
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

5.0
There are three types of memory in PIC18 Enhanced
microcontroller devices:
• Program Memory
• Data RAM
• Data EEPROM
As Harvard architecture devices, the data and program
memories use separate buses; this allows for
concurrent access of the two memory spaces. The data
EEPROM, for practical purposes, can be regarded as
a peripheral device, since it is addressed and accessed
through a set of control registers.
Additional detailed information on the operation of the
Flash program memory is provided in Section 6.0
“Flash Program Memory”. Data EEPROM is
discussed separately in Section 7.0 “Data EEPROM
Memory”.
 2010 Microchip Technology Inc.
MEMORY ORGANIZATION
Preliminary
5.1
PIC18 microcontrollers implement a 21-bit program
counter, which is capable of addressing a 2-Mbyte
program memory space. Accessing a location between
the upper boundary of the physically implemented
memory and the 2-Mbyte address will return all ‘0’s (a
NOP instruction).
This family of devices contain the following:
• PIC18(L)F23K22, PIC18(L)F43K22: 8 Kbytes of
• PIC18(L)F24K22, PIC18(L)F44K22: 16 Kbytes of
• PIC18(L)F25K22, PIC18(L)F45K22: 32 Kbytes of
• PIC18(L)F26K22, PIC18(L)F46K22: 64 Kbytes of
PIC18 devices have two interrupt vectors. The Reset
vector address is at 0000h and the interrupt vector
addresses are at 0008h and 0018h.
The program memory map for PIC18(L)F2X/4XK22
devices is shown in
are shown in
Flash Memory, up to 4,096 single-word instructions
Flash Memory, up to 8,192 single-word instructions
Flash Memory, up to 16,384 single-word instruc-
tions
Flash Memory, up to 37,768 single-word
instructions
PIC18(L)F2X/4XK22
Program Memory Organization
Figure
20-2.
Figure
5-1. Memory block details
DS41412D-page 69