PIC16LF1904-E/PT Microchip Technology, PIC16LF1904-E/PT Datasheet - Page 90

• Manufacturer Part Number: PIC16LF1904-E/PT
• Description: 7KB Flash, 256B RAM, LCD, 14x10b ADC, EUSART, NanoWatt XLP 44 TQFP 10x10x1mm TRA
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16LF1904-E/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: LIN, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC16LF1904/6/7
EXAMPLE 10-2:
DS41569A-page 90
; This row erase routine assumes the following:
; 1. A valid address within the erase row is loaded in ADDRH:ADDRL
; 2. ADDRH and ADDRL are located in shared data memory 0x70 - 0x7F (common RAM)
BCF
BANKSEL
MOVF
MOVWF
MOVF
MOVWF
BCF
BSF
BSF
MOVLW
MOVWF
MOVLW
MOVWF
BSF
NOP
NOP
BCF
BSF
ERASING ONE ROW OF PROGRAM MEMORY
INTCON,GIE
PMADRL
ADDRL,W
PMADRL
ADDRH,W
PMADRH
PMCON1,CFGS
PMCON1,FREE
PMCON1,WREN
55h
PMCON2
0AAh
PMCON2
PMCON1,WR
PMCON1,WREN
INTCON,GIE
; Disable ints so required sequences will execute properly
; Load lower 8 bits of erase address boundary
; Load upper 6 bits of erase address boundary
; Not configuration space
; Specify an erase operation
; Enable writes
; Start of required sequence to initiate erase
; Write 55h
;
; Write AAh
; Set WR bit to begin erase
; NOP instructions are forced as processor starts
; row erase of program memory.
;
; The processor stalls until the erase process is complete
; after erase processor continues with 3rd instruction
; Disable writes
; Enable interrupts
Preliminary
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