W78E516DPG Nuvoton Technology Corporation of America, W78E516DPG Datasheet - Page 86

• 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: -

MAIN_4K:
OPERATION, ABOUT 15ms. DEPENDING
ERASE_P_4K:
;*********************************************************************
;* BLANK CHECK
;*********************************************************************
ABOUT 1.5us.
UPDATE_:
MOV CHPENR,#87H ;CHPENR=87H, CHPCON WRITE ENABLE.
MOV A,CHPCON
MOV R7,#FFH
MOV CHPENR,#59H ;CHPENR=59H, CHPCON WRITE ENABLE.
MOV 7FH,#01H
ANL A,#01H
CJNE A,#00H,UPDATE_
MOV 7FH,#00H
MOV CHPCON,#01H ;CHPCON=01H, ENABLE IN-SYSTEM PROGRAMMING.
MOV CHPENR,#00H ;DISABLE CHPCON WRITE ATTRIBUTE
MOV TCON,#00H
MOV IP,#00H
MOV IE,#82H
MOV R6,#FEH
MOV TL0,R6
MOV TH0,R7
MOV TCON,#10H
MOV PCON,#01H
MOV CHPENR,#00H
MOV TCON,#00H
MOV IP,#00H
MOV IE,#82H
MOV TMOD,#01H
MOV R6,#3CH
MOV R7,#B0H
MOV TL0,R6
MOV TH0,R7
MOV SFRCN,#22H
MOV TCON,#10H
MOV PCON,#01H
MOV SFRCN,#0H
MOV SFRAH,#0H
MOV SFRAL,#0H
MOV R7,#FFH
MOV TL0,R6
MOV TH0,R7
MOV TMOD,#01H
;ON USER'S SYSTEM CLOCK RATE.
MOV R6,#FBH
Preliminary W78E516D/W78E058D Data Sheet
;TCON=10H,TR0=1,GO
;SFRCN(C7H)=22H ERASE
;ENTER IDLE MODE( FOR ERASE OPERATION)
;DISABLE CHPCON WRITE-ATTRIBUTE
;TCON=10H,TR0=1,GO
;ENTER IDLE MODE
;TCON=00H ,TR=0 TIMER0 STOP
; FLAG=0, NOT IN THE F04KBOOT MODE.
;CHECK CHPCON BIT 0
;TCON=00H ,TR=0 TIM0 STOP
;TMOD=01H ,MODE1
;READ APROM MODE
;START ADDRESS = 0H
- 86 -
;SET F04KBOOT MODE FLAG.
;IP=00H
;IE=82H,TIMER0 INTERRUPT ENABLED
;TMOD=01H ,SET TIMER0 A 16BIT TIMER
;IP=00H
;IE=82H,TIMER0 INTERRUPT ENABLED
;SET TIMER FOR READ OPERATION,
;SET WAKE-UP TIME FOR ERASE