W78E516DPG Nuvoton Technology Corporation of America, W78E516DPG Datasheet - Page 87

• Manufacturer Part Number: W78E516DPG
• Description: IC MCU 8-BIT 64K FLASH 44-PLCC
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W78r

Specifications of W78E516DPG

• Core Processor: 8052
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 36
• 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: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

BLANK_CHECK_LOOP:
BLANK_CHECK_ERROR:
;*******************************************************************************
;* RE-PROGRAMMING APROM BANK
;*******************************************************************************
PROGRAM_ROM:
PROG_D_:
;*****************************************************************************
; * VERIFY APROM BANK
;*****************************************************************************
MOV R2,#00H
MOV SFRCN,#21H
INC DPTR
INC R2
INC R1
MOV P1,#F0H
MOV P3,#F0H
JMP $
MOV DPTR,#0H
MOV R1,#00H
MOV DPTR,#0H
MOV SFRAH,R1
MOV R6,#0CH
MOV R7,#FEH
MOV TL0,R6
MOV TH0,R7
MOV SFRAL,R2
MOVX A,@DPTR
MOV SFRFD,A
MOV TCON,#10H
MOV PCON,#01H
CJNE R2,#0H,PROG_D_
MOV SFRAH,R1
CJNE R1,#C0H,PROG_D_
MOV R4,#03H
MOV R6,#FBH
MOV R7,#FFH
MOV TL0,R6
MOV TH0,R7
SETB TR0
MOV PCON,#01H
MOV A,SFRFD
CJNE A,#FFH,BLANK_CHECK_ERROR
INC SFRAL
MOV A,SFRAL
JNZ BLANK_CHECK_LOOP
INC SFRAH
MOV A,SFRAH
CJNE A,#C0H,BLANK_CHECK_LOOP ;END ADDRESS=BFFFH
JMP PROGRAM_ROM
;SFRCN(C7H)=21 (PROGRAM )
Preliminary W78E516D/ W78E058D Data Sheet
;TARGET LOW BYTE ADDRESS
;SET TIMER FOR PROGRAMMING, ABOUT 150us.
;SFRAH, TARGET HIGH ADDRESS
;TARGET HIGH BYTE ADDRESS
;SFRFD(C6H)=DATA IN
;TCON=10H,TR0=1,GO
;ENTER IDLE MODE( PRORGAMMING)
;SET TIMER FOR READ VERIFY, ABOUT 1.5us.
;EXTERNAL SRAM BUFFER ADDRESS
- 87 -
;THE ADDRESS OF NEW ROM CODE
;SFRAL(C4H)= LOW BYTE ADDRESS
;READ DATA FROM EXTERNAL SRAM BUFFER
;ERROR COUNTER
;ENTER IDLE MODE
;READ ONE BYTE
Publication Release Date: July 30, 2008
;ENABLE TIMER 0
;NEXT ADDRESS
Revision A01