W79E225A_08 Datasheet, PDF (70/203 Pages) Winbond – 8-bit Microcontroller

Preliminary W79E225A/226A/227A Data Sheet
EXTENDED INTERRUPT HIGH PRIORITY
Bit:
7
6
5
4
3
2
1
0
PS1H
PX5H
PX4H
PWDIH PX3H
PX2H
-
PI2CH
Mnemonic: EIPH
Address: F7h
BIT NAME
FUNCTION
7 PS1H
Serial Port 1 Interrupt High Priority. PS1H = 1 sets it to highest priority level.
6 PX5H
External Interrupt 5 High Priority. PX5H = 1 sets it to highest priority level.
5 PX4H
External Interrupt 4 High Priority. PX4H = 1 sets it to highest priority level.
4
PWDIH
Watchdog Timer Interrupt High Priority. PWDIH = 1 sets it to highest priority
level.
3 PX3H
External Interrupt 3 High Priority. PX3H = 1 sets it to highest priority level.
2 PX2H
External Interrupt 2 High Priority. PX2H = 1 sets it to highest priority level.
1-
Reserved.
0 PI2CH
I2C Interrupt High Priority. PI2CH = 1 sets it to highest priority level.
EXTENDED INTERRUPT PRIORITY
Bit:
7
6
5
4
3
PS1
PX5
PX4
PWDI
PX3
Mnemonic: EIP
BIT NAME
FUNCTION
7 PS1
Serial Port 1 Interrupt Priority.
6 PX5
External Interrupt 5 Priority.
5 PX4
External Interrupt 4 Priority.
4 PWDI
Watchdog Timer Interrupt Priority.
3 PX3
External Interrupt 3 Priority.
2 PX2
External Interrupt 2 Priority.
1-
Reserved.
0 PI2C
I2C Interrupt Priority.
2
1
PX2
-
Address: F8h
0
PI2C
EXTENDED INTERRUPT ENABLE 1
Bit:
7
6
5
-
-
ENVM
4
ECPTF
3
ET3
2
EBK
1
EPWM
0
ESPI
Mnemonic: EIE1
Address: F9h
- 70 -
Publication Release Date: April 15, 2008
Revision A4.0