W78E052DDG Nuvoton Technology Corporation of America, W78E052DDG Datasheet - Page 66

• 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: -

Get the parameters of new code
Setting Timer and enable Timer
(50us for program operation)
through I/O ports, UART or
(Address and data bytes)
MOV SFRAH,#ADDRESS_H
Ease 14K AP programming:
MOV SFRAL,#ADDRESS_L
End of Programming ?
Setting control registers for
interrupt for wake-up .
MOV SFRFD,#DATA
other interfaces
MOV SFRCN,#21H
MOV ERPAGE,#01
MOV SFRCN,#22H
programming:
PGM
NO
.
YES
W78E054D/W78E052D/W78E051D Data Sheet
Software reset CPU and
00H in the 2KB APROM.
re-boot from the 2KB
F02K BOOT Mode ?
Read_Compay_ID
MOV CHPCON,#81h
Executing new code
Read_Device_ID
Is currently in the
- 66 -
from address
Read_Dist
Read_VT
APROM.
END
NO
Procedure of Updating
the 2KB APROM
invalid in F02K BOOT
new 2 KB APROM.
Part 2:
Hardware Reset
to re-boot from
(S/W reset is
Mode)
YES