W78E052DDG Nuvoton Technology Corporation of America, W78E052DDG Datasheet - Page 87

• Manufacturer Part Number: W78E052DDG
• Description: IC MCU 8-BIT 8K FLASH 40-DIP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W78r

Specifications of W78E052DDG

• 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: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

Program_Fail:
;******************************************************************************
;* PROGRAMMING COMPLETLY, SOFTWARE RESET CPU TO APROM
;******************************************************************************
Software_Reset:
;******************************************************************************
;* PROGRAMMING COMPLETLY, SOFTWARE RESET CPU TO LDROM
;******************************************************************************
cpl
mov
inc
mov
cjne
mov
cjne
ret
mov
sjmp
MOV
;MOV CHPCON,#083h
sjmp
end
A
B,A
DPTR
R0,DPL
R0,#LOW (APROM_END_ADDRESS),rd_lp
R1,DPH
R1,#HIGH(APROM_END_ADDRESS),rd_lp
P1,#03h
$
CHPCON,#081h
$
;CHPCON=083h, SOFTWARE RESET to LDROM.
;CHPCON=081h, SOFTWARE RESET to APROM.
W78E054D/W78E052D/W78E051D Data Sheet
- 87 -
Publication Release Date: Dec 29, 2009
Revision A09