W78E516B40DL Nuvoton Technology Corporation of America, W78E516B40DL Datasheet - Page 10

• 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: -

XICON - external interrupt control (C0H)
PX3: External interrupt 3 priority high if set
EX3: External interrupt 3 enable if set
IE3: If IT3 = 1, IE3 is set/cleared automatically by hardware when interrupt is detected/serviced
IT3: External interrupt 3 is falling-edge/low-level triggered when this bit is set/cleared by software
PX2: External interrupt 2 priority high if set
EX2: External interrupt 2 enable if set
IE2: If IT2 = 1, IE2 is set/cleared automatically by hardware when interrupt is detected/serviced
IT2: External interrupt 2 is falling-edge/low-level triggered when this bit is set/cleared by software
Eight-source interrupt information
External Interrupt 0
Timer/Counter 0
External Interrupt 1
Timer/Counter 1
Serial Port
Timer/Counter 2
External Interrupt 2
External Interrupt 3
INTERRUPT SOURCE
PX3
EX3
ADDRESS
VECTOR
IE3
0BH
1BH
2BH
3BH
03H
13H
23H
33H
POLLING SEQUENCE
IT3
WITHIN PRIORITY
0 (highest)
7 (lowest)
LEVEL
- 10 -
1
2
3
4
5
6
PX2
REQUIRED
SETTINGS
EX2
XICON.2
XICON.6
ENABLE
IE.0
IE.1
IE.2
IE.3
IE.4
IE.5
IE2
W78E516B
INTERRUPT TYPE
EDGE/LEVEL
XICON.0
XICON.3
TCON.0
TCON.2
-
-
-
-
IT2