W78E052DDG Nuvoton Technology Corporation of America, W78E052DDG Datasheet - Page 28

• 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: -

EAPAGE ERASE PAGE Operation Modes
Mnemonic: EAPAGE
;CPU Clock = 12MHz/12T mode
READ_TIME
PROGRAM_TIME
ERASE_TIME
Erase_AP Flash:
Erase_LD Flash:
Chip Control
Bit:
BIT
1
0
Bit:
mov
mov
mov
mov
setb
mov
mov
clr
clr
ret
mov
mov
mov
mov
setb
mov
mov
clr
clr
ret
7
NAME
EAPG1
EAPG0
7
-
EAPAGE,#01h
SFRCN,#ERASE_ROM
TL0,#LOW (65536-ERASE_TIME)
TH0,#HIGH(65536-ERASE_TIME)
TR0
CHPCON,#00000011b
EAPAGE,#00h
TF0
TR0
EAPAGE,#02h
SFRCN,#ERASE_ROM
TL0,#LOW (65536-ERASE_TIME)
TH0,#HIGH(65536-ERASE_TIME)
TR0
CHPCON,#00000011b
EAPAGE,#00h
TF0
TR0
6
6
FUNCTION
1.To ease PAGE1 when ease command is set.(LD flash)
1.To ease PAGE0 when ease command is set. (AP Flash)
EQU
EQU
EQU
-
5
1
50
5000
5
-
;set EAPAGE is APROM
;clear EAPAGE
;set EAPAGE is LDROM
;clear EAPAGE
W78E054D/W78E052D/W78E051D Data Sheet
4
4
-
- 28 -
3
3
-
2
2
-
1
EAPG1
1
Address: BD
0
0
EAPG0