W77E058A40DL Nuvoton Technology Corporation of America, W77E058A40DL Datasheet - Page 28

• Manufacturer Part Number: W77E058A40DL
• Description: IC MCU 8-BIT 32K FLASH 40-DIP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W77r

Specifications of W77E058A40DL

• Program Memory Type: FLASH
• Program Memory Size: 32KB (32K x 8)
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, Serial Port
• Peripherals: POR, WDT
• Number Of I /o: 32
• Ram Size: 1K 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
• Cpu Family: W77
• Device Core: 8051
• Device Core Size: 8b
• Frequency (max): 40MHz
• Interface Type: UART
• Total Internal Ram Size: 1KB
• # I/os (max): 32
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Instruction Set Architecture: CISC
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 40
• Package Type: PDIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant

Extended Interrupt Enable
EIE.7-5:Reserved bits, will read high
EWDI: Enable Watchdog timer interrupt
EX5: External Interrupt 5 Enable.
EX4: External Interrupt 4 Enable.
EX3: External Interrupt 3 Enable.
EX2: External Interrupt 2 Enable.
B Register
B.7-0:The B register is the standard 8052 register that serves as a second accumulator.
Extended Interrupt Priority
EIP.7-5:Reserved bits.
PWDI: Watchdog timer interrupt priority.
PX5:
PX4:
PX3:
PX2:
External Interrupt 5 Priority. 0 = Low priority, 1 = High priority.
External Interrupt 4 Priority. 0 = Low priority, 1 = High priority.
External Interrupt 3 Priority. 0 = Low priority, 1 = High priority.
External Interrupt 2 Priority. 0 = Low priority, 1 = High priority.
Mnemonic: EIP
Mnemonic: EIE
Mnemonic: B
Bit:
Bit:
Bit:
B.7
7
7
7
-
-
B.6
6
6
6
-
-
B.5
- 28 -
5
5
5
-
-
EWDI
PWDI
B.4
4
4
4
EX5
PX5
B.3
3
3
3
Address: F0h
Address: E8h
EX4
PX4
B.2
Address: F8h
2
2
2
W77E058A
EX3
PX3
B.1
1
1
1
EX2
PX2
B.0
0
0
0