W78E054D Datasheet, PDF (26/89 Pages) List of Unclassifed Manufacturers – 8-bit microcontroller

W78E054D/W78E052D Data Sheet
Interrupt Enable
Bit: 7
6
5
4
3
2
EA
-
ET2
ES
ET1
EX1
Mnemonic: IE
BIT NAME
FUNCTION
7 EA
Global enable. Enable/Disable all interrupts.
6-
Reserved
5 ET2
Enable Timer 2 interrupt.
4 ES
Enable Serial Port 0 interrupt.
3 ET1
Enable Timer 1 interrupt.
2 EX1
Enable external interrupt 1.
1 ET0
Enable Timer 0 interrupt.
0 EX0
Enable external interrupt 0.
1
0
ET0
EX0
Address: A8h
Port 3
Bit: 7
6
5
4
3
2
1
0
P3.7
P3.6
P3.5
P3.4
P3.3
P3.2
P3.1
P3.0
Mnemonic: P3
Address: B0h
P3.7-0: General purpose Input/Output port. Most instructions will read the port pins in case of a port
read access, however in case of read-modify-write instructions, the port latch is read. These alter-
nate functions are described below:
BIT NAME
FUNCTION
7 P3.7
RD
6 P3.6
WR
5 P3.5
T1
4 P3.4
T0
3 P3.3
INT 1
2 P3.2
INT0
1 P3.1
TX
0 P3.0
RX
Interrupt High Priority
Bit: 7
IPH.7
6
IPH.6
5
IPH.5
4
IPH.4
3
IPH.3
2
IPH.2
Mnemonic: IPH
BIT NAME
FUNCTION
7 IPH.7
1: Interrupt high priority of INT3 is highest priority level.
1
IPH.1
0
IPH.0
Address: B7h
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Publication Release Date: Jun 9, 2015
Revision A13