W78E516B40DL Nuvoton Technology Corporation of America, W78E516B40DL Datasheet - Page 36

• Manufacturer Part Number: W78E516B40DL
• Description: IC MCU 8-BIT 64K FLASH 40-DIP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W78r

Specifications of W78E516B40DL

• Core Processor: 8052
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR
• Number Of I /o: 32
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

READ_VERIFY_64K:
;******************************************************************************
;* PROGRAMMING COMPLETLY, SOFTWARE RESET CPU
;******************************************************************************
ERROR_64K:
CJNE R2, #0H, READ_VERIFY_64K
INC R1
MOV SFRAH, R1
MOV SFRAL, R2
MOV TCON, #10H
MOV PCON, #01H
INC R2
MOVX A, @DPTR
INC DPTR
CJNE A, SFRFD, ERROR_64K
CJNE R1, #0H, READ_VERIFY_64K
MOV CHPENR, #87H
MOV CHPENR, #59H
MOV CHPCON, #83H
DJNZ R4, UPDATE_64K
.
.
.
.
; SFRAL (C4H) = LOW ADDRESS
; TCON = 10H, TR0 = 1, GO
; CHPENR = 87H
; CHPENR = 59H
; CHPCON = 83H, SOFTWARE RESET.
; IF ERROR OCCURS, REPEAT 3 TIMES.
; IN-SYSTEM PROGRAMMING FAIL, USER'S PROCESS TO DEAL WITH IT.
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W78E516B