SM5953 Datasheet, PDF (35/43 Pages) SyncMOS Technologies,Inc – Six interrupt sources with two priority levels

ET1: ET1=0 – Disable Timer 1 overflow interrupt.
ET1=1 – Enable Timer 1 overflow interrupt.
EX1: EX1=0 – Disable external interrupt 1.
EX1=1 – Enable external interrupt 1.
ET0: ET0=0 – Disable Timer 0 overflow interrupt.
ET0=1 – Enable Timer 0 overflow interrupt.
EX0: EX0=0 – Disable external interrupt 0.
EX0=1 – Enable external interrupt 0.
Mnemonic: IP
7
6
5
4
-
-
PT2
PS
3
2
PT1
PX1
PT2: Timer2 interrupt priority bit.
PS: Serial port interrupt priority bit.
PT1: Timer1 interrupt priority bit.
PX1: External interrupt 1 priority bit.
PT0: Timer 0 interrupt priority bit.
PX0: External interrupt 0 priority bit.
Interrupt Priority Table
IP.x
Priority Level
1
1 (highest)
0
2
SM5953
8-Bit Micro-controller
15KB with ISP Flash
& 256B RAM embedded
Address: B8h
1
0 Reset
PT0 PX0 00H
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M074
Ver D SM5953 04/16/2015
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