W78E516DPG Nuvoton Technology Corporation of America, W78E516DPG Datasheet - Page 85

• 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: -

;********************************************************************************
;* Normal mode APROM program: depending user's application
;********************************************************************************
NORMAL_MODE:
EXAMPLE 2:
;***************************************************************************************************************************** ;*
Example of 4KB LDROM program: This lorder program will erase the APROM first, then reads the new ;* code
from external SRAM and program them into APROM bank. XTAL = 40 MHz
;*****************************************************************************************************************************
;************************************************************************
;* 1. TIMER0 SERVICE VECTOR ORG=0BH
;************************************************************************
;************************************************************************
;* 4KB LDROM MAIN PROGRAM
;************************************************************************
.chip 8052
.RAMCHK OFF
.symbols
CHPCON
CHPENR
SFRAL
SFRAH
SFRFD
SFRCN
ORG 100H
ORG
ORG 000BH
MOV R6,#FEH
MOV R7,#FFH
MOV TL0,R6
MOV TH0,R7
MOV TMOD,#01H
MOV TCON,#10H
MOV PCON,#01H
LJMP
CLR
MOV TL0,R6
MOV TH0,R7
RETI
;PROGRAMMABILITY
EQU
EQU
TR0
Preliminary W78E516D/ W78E058D Data Sheet
.
.
.
.
.
EQU
EQU
EQU
EQU
000H
100H
;TR0=0,STOP TIMER0
;JUMP TO MAIN PROGRAM
;User's application program
BFH
F6H
C5H
- 85 -
;TMOD=01H,SET TIMER0 A 16-BIT TIMER
;TCON=10H,TR0=1,GO
;ENTER IDLE MODE FOR LAUNCHING THE IN-SYSTEM
C4H
C6H
C7H
;TH0=FFH
;TL0=FEH
Publication Release Date: July 30, 2008
Revision A01