W78E516DPG Nuvoton Technology Corporation of America, W78E516DPG Datasheet - Page 26

• Manufacturer Part Number: W78E516DPG
• Description: IC MCU 8-BIT 64K FLASH 44-PLCC
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W78r

Specifications of W78E516DPG

• 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: 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: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

Port 2
Mnemonic: P2
Interrupt Enable
Mnemonic: IE
P4.2 Base Address Low Byte Register
Mnemonic: P42AL
P4.2 Base Address High Byte Register
Bit:
BIT
7-0
Bit:
BIT
7
6
5
4
3
2
1
0
Bit:
BIT
7-0
Bit:
NAME
P2.[7:0]
NAME
EA
-
ET2
ES
ET1
EX1
ET0
EX0
NAME
P42AL.[7:0]
7
P2.7
7
P42AL.7
7
P42AH.7
7
EA
FUNCTION
Port 2 is a bi-directional I/O port with internal pull-ups. This port also provides the
upper address bits for accesses to external memory.
6
P2.6
6
P42AL.6
6
P42AH.6
6
-
consists of two separate internal 8-bit registers. One is the receive resister, and
the other is the transmit buffer. Any read access gets data from the receive data
buffer, while write access is to the transmit data buffer.
FUNCTION
Global enable. Enable/Disable all interrupts.
Reserved
Enable Timer 2 interrupt.
Enable Serial Port 0 interrupt.
Enable Timer 1 interrupt.
Enable external interrupt 1.
Enable Timer 0 interrupt.
Enable external interrupt 0.
FUNCTION
The Base address register for comparator of P4.2. P42AL contains the low-
order byte of address.
Preliminary W78E516D/W78E058D Data Sheet
5
P2.5
5
P42AL.5
5
P42AH.5
5
ET2
4
4
4
P2.4
4
P42AL.4
P42AH.4
ES
- 26 -
3
P2.3
3
ET1
3
P42AL.3
3
P42AH.3
2
P2.2
2
EX1
2
P42AL.2
2
P42AH.2
1
P2.1
1
ET0
1
P42AL.1
1
P42AH.1
Address: A0h
Address: A8h
Address: ACh
0
P2.0
0
EX0
0
P42AL.0
0
P42AH.0