PIC16F1938-E/MV Microchip Technology, PIC16F1938-E/MV Datasheet - Page 125

• Manufacturer Part Number: PIC16F1938-E/MV
• Description: 28KB Flash, 1KB RAM, 256B EEPROM, LCD, 1.8-5.5V 28 UQFN 4x4x0.5mm TUBE
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1938-E/MV

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Size: 28KB (16K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-UFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

11.6
Depending on the application, good programming
practice may dictate that the value written to the data
EEPROM or program memory should be verified (see
Example 11-6) to the desired value to be written.
Example 11-6 shows how to verify a write to EEPROM.
EXAMPLE 11-6:
 2009 Microchip Technology Inc.
BANKSEL EEDATL
MOVF
BSF
XORWF
BTFSS
GOTO
:
Write Verify
EEDATL, W
EECON1, RD ;YES, Read the
EEDATL, W
STATUS, Z
WRITE_ERR
EEPROM WRITE VERIFY
;
;EEDATL not changed
;from previous write
;value written
;
;Is data the same
;No, handle error
;Yes, continue
Preliminary
PIC16F193X/LF193X
DS41364D-page 125