W78E516B40DL Nuvoton Technology Corporation of America, W78E516B40DL Datasheet - Page 33

• 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: -

;********************************************************************************
;* Normal mode 64KB APROM program: depending user's application
;********************************************************************************
NORMAL_MODE:
EXAMPLE 2:
;*****************************************************************************************************************************
Example of 4KB LDROM program: This lorder program will erase the 64KB APROM first, then reads the new ;*
code from external SRAM and program them into 64KB 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
MOV IP, #00H
MOV IE, #82H
MOV R6, #F0H
MOV R7, #FFH
MOV TL0, R6
MOV TH0, R7
MOV TMOD, #01H
MOV TCON, #10H
MOV PCON, #01H
ORG
LJMP
ORG 000BH
CLR TR0
MOV TL0, R6
MOV TH0, R7
RETI
.
.
.
.
000H
100H
EQU
EQU
EQU
EQU
EQU
EQU
C5H
BFH
F6H
C4H
C6H
C7H
; JUMP TO MAIN PROGRAM
; TR0 = 0, STOP TIMER0
; User's application program
; IP = 00H
; TIMER0 INTERRUPT ENABLE FOR WAKE-UP FROM IDLE MODE
; TL0 = F0H
; TCON = 10H, TR0 = 1,GO
; ENTER IDLE MODE FOR LAUNCHING THE IN-SYSTEM
; PROGRAMMABILITY
; TH0 = FFH
; TMOD = 01H, SET TIMER0 A 16-BIT TIMER
- 33 -
Publication Release Date: December 4, 2006
W78E516B
Revision A11
;*