PIC16LF77-I/PT Microchip Technology, PIC16LF77-I/PT Datasheet - Page 29
![IC PIC MCU FLASH 8KX14 44TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC16LF77-I/PT
Manufacturer Part Number
PIC16LF77-I/PT
Description
IC PIC MCU FLASH 8KX14 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Specifications of PIC16LF77-I/PT
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
14KB (8K x 14)
Program Memory Type
FLASH
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Other names
PIC16LF77I/PT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16LF77-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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2.5
The INDF register is not a physical register. Addressing
the INDF register will cause indirect addressing.
Indirect addressing is possible by using the INDF reg-
ister. Any instruction using the INDF register actually
accesses the register pointed to by the File Select Reg-
ister, FSR. Reading the INDF register itself indirectly
(FSR = ’0’) will read 00h. Writing to the INDF register
indirectly results in a no operation (although status bits
may be affected). An effective 9-bit address is obtained
by concatenating the 8-bit FSR register and the IRP bit
(STATUS<7>), as shown in Figure 2-5.
A simple program to clear RAM locations 20h-2Fh
using indirect addressing is shown in Example 2-2.
FIGURE 2-5:
2002 Microchip Technology Inc.
Bank Select
RP1:RP0
Note 1: For register file map detail, see Figure 2-2.
Indirect Addressing, INDF and FSR
Registers
Location Select
6
Direct Addressing
Data
Memory
DIRECT/INDIRECT ADDRESSING
From Opcode
(1)
00h
7Fh
Bank 0
00
0
80h
FFh
Bank 1
01
100h
17Fh
Bank 2
10
EXAMPLE 2-2:
NEXT
CONTINUE
180h
1FFh
:
Bank 3
11
MOVLW
MOVWF
CLRF
INCF
BTFSS
GOTO
IRP
Bank Select
0x20
FSR
INDF
FSR,F
FSR,4
NEXT
7
INDIRECT ADDRESSING
Indirect Addressing
;initialize pointer
;to RAM
;clear INDF register
;inc pointer
;all done?
;no clear next
;yes continue
PIC16F7X
FSR Register
DS30325B-page 27
Location Select
0
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