PIC16LF1902-I/P View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16LF1902-I/P

28-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology

Microchip Technology 

PIC16LF1902/3

3.2.2 SPECIAL FUNCTION REGISTER

The Special Function Registers (FSRs) are registers

used by the application to control the desired operation

of peripheral functions in the device. The Special

Function Registers occupy the 20 bytes after the core

registers of every data memory bank (addresses

x0Ch/x8Ch through x1Fh/x9Fh). The registers

associated with the operation of the peripherals are

described in the appropriate peripheral chapter of this

data sheet.

3.2.3 GENERAL PURPOSE RAM

There are up to 80 bytes of GPR in each data memory

bank. The Special Function Registers occupy the 20

bytes after the core registers of every data memory

bank (addresses x0Ch/x8Ch through x1Fh/x9Fh).

3.2.3.1 Linear Access to GPR

The general purpose RAM can be accessed in a

non-banked method via the FSRs. This can simplify

access to large memory structures. See Section 3.5.2

“Linear Data Memory” for more information.

3.2.4 COMMON RAM

There are 16 bytes of common RAM accessible from all

banks.

FIGURE 3-3:

BANKED MEMORY

PARTITIONING

7-bit Bank Offset

Memory Region

00h

Core Registers

(12 bytes)

0Bh

0Ch

Special Function Registers

(20 bytes maximum)

1Fh

20h

General Purpose RAM

(80 bytes maximum)

6Fh

70h

Common RAM

(16 bytes)

7Fh

3.2.5 DEVICE MEMORY MAPS

The memory maps for PIC16LF1902 and

PIC16LF1903 are as shown in Table 3-3.

DS41455A-page 20

Preliminary

 2011 Microchip Technology Inc.

Share Link: