SyncMOS Technologies International, Inc.
SM59264
8-Bits Micro-controller
with 128KB flash & 1KB RAM & TWSI & SPWM embedded
Interrupt Priority I Register (IP1, $B9)
Bit-7
bit-0
Read:
Write:
Reset value:
R
0
R
0
R
0
R
0
R
0
R
0
PTWSI
0
R
0
Interrupt priority bit PTWSI = 1 assigns high interrupt priority
Interrupt priority bit PTWSI = 0 assigns low interrupt priority
Interrupt Enable I Register (IE1, $A9)
Bit-7
bit-0
Read:
Write:
Reset value:
R
0
R
0
R
0
R
0
R
0
R
0
ETWSI
0
R
0
Interrupt enable bit ETWSI = 1 enables the TWSI interrupt
Interrupt enable bit ETWSI = 0 disables the TWSI interrupt
Interrupt Flag Register (IFR, $AA)
Bit-7
bit-0
Read:
Write:
Reset value:
R
0
R
0
R
0
R
0
R
0
R
0
TWSIIF
0
R
0
Interrupt flag bit TWSIIF will be set to 1 when TWSI interrupt occurs. Interrupt flag bit TWSIIF will be clear to 0 if TWSI
interrupt subroutine executed.
7.2 PROGRAM ALGORITHM
When the TWSI module detects an arbitration loss in master, it will release both SDA and SCL lines immediately. But if
there is no further Stop condition detected, the module will be hanged up.
Specifications subject to change without notice contact your sales representatives for the most recent information.
Ver 2.1 SM59264 08/2006
25
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
