PIC16C782 Microchip Technology Inc., PIC16C782 Datasheet - Page 13

• Manufacturer Part Number: PIC16C782
• Description: 8-bit Cmos Microcontrollers With A/d, D/a, Opamp, Comparators And Psmc
• Manufacturer: Microchip Technology Inc.

2.0
There are two memory blocks in each of these
PICmicro
data memory) has its own bus, so that concurrent
access can occur.
Additional information on device memory may be found
in the PICmicro™ Mid-Range Reference Manual,
(DS33023).
2.1
The PIC16C781/782 devices have a 13-bit program
counter capable of addressing an 8K x 14 program
memory space. The PIC16C781 has 1K x 14 words of
program memory. The PIC16C782 has 2K x 14 words
of program memory. Accessing a location above the
physically implemented address causes a wraparound.
The RESET vector is at 0000h and the interrupt vector
is at 0004h.
FIGURE 2-1:
Program
On-Chip
Memory
2001 Microchip Technology Inc.
CALL, RETURN
RETFIE, RETLW
MEMORY ORGANIZATION
Program Memory Organization
®
microcontrollers. Each block (program and
Interrupt Vector
RESET Vector
Stack Level 2
Stack Level 8
Stack Level 1
PC<12:0>
PIC16C781 PROGRAM
MEMORY MAP AND
STACK
Page 0
13
1FFFh
0000h
0004h
0005h
03FFh
0400h
Preliminary
FIGURE 2-2:
2.2
The data memory is partitioned into multiple banks,
which contain the General Purpose Registers and the
Special Function Registers. Bits RP0 and RP1 are
bank select bits.
= 00
= 01
= 10
= 11
Each bank extends up to 7Fh (128 bytes). The lower
locations of each bank are reserved for the Special
Function Registers. Above the Special Function Regis-
ters are the General Purpose Registers, implemented
as static RAM. All implemented banks contain Special
Function Registers. Some frequently used Special
Function Registers from one bank are mirrored in
another bank for code reduction and quicker access.
RP1 RP0
On-Chip
Program
Memory
CALL, RETURN
RETFIE, RETLW
Data Memory Organization
Bank0
Bank1
Bank2
Bank3
PIC16C781/782
(STATUS<6:5>)
Interrupt Vector
RESET Vector
Stack Level 2
Stack Level 8
Stack Level 1
PIC16C782 PROGRAM
MEMORY MAP AND
STACK
PC<12:0>
Page 0
13
DS41171A-page 11
1FFFh
0000h
0004h
0005h
07FFh
0800h