SM5964A Datasheet, PDF (26/30 Pages) SyncMOS Technologies,Inc – 8-Bit Micro-controller With 64KB ISP Flash & TWSI & PWM & 1KB RAM embedded

SyncMOS Technologies International, Inc.
SM5964A
PX0: external interrupt 0 priority.
8-Bit Micro-controller
With 64KB ISP Flash & TWSI & PWM & 1KB RAM embedded
IP1($B9H)
Bit7
Bit6
Bit5
Bit4
Bit3
PTWSI: When set to ‘1’, enable the TWSI interrupt priority.
Bit2
Bit1
Bit0
PTWSI
The Priority structure and vector locations of interrupts:
Source
External interrupt 0
Timer 0 overflow
External interrupt 1
Timer 1 overflow
UART interrupt
Timer 2 overflow
TWSI
Flag
IE0
TF0
IE1
TF1
RI+TI
TF2+EXF2
RXIF+ TXIF+ TFIF+ NAKIF
Priority level
1(highest)
2
3
4
5
6
7
Vector Address
03H
0BH
13H
1BH
23H
2BH
3BH
T2MOD ($C9H)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
T2OE
DCEN
T2OE: Timer2 clock Output Enable bit. If set to 1, the Timer2 clock will output to P1.0.
DCEN: Down Count Enable. When set this bit then allows Timer2 to be configured as an up/down counter.
Application Reference
Valid for SM5964A
XI
X'tal
3MHz
6MHz
9MHz
12MHz
C1
30 pF
30 pF
30 pF
22 pF
C2
30 pF
30 pF
30 pF
22 pF
X'tal
SM 5964A
R
open
open
open
open
X'tal
16MHz 25MHz
C1
30 pF
15 pF
R
X2
C1
C2
C2
30 pF
15 pF
R
open
open
Note:
Oscillation circuit may differs with different crystal or ceramic resonator in higher oscillation frequency which was due to each crystal or ceramic
resonator has its own characteristics. User should check with the crystal or ceramic resonator manufacturer for appropriate value of external
components.
Specifications subject to change without notice contact your sales representatives for the most recent information.
26
Ver 2.3 SM5964A 10/2006