SM89S16R1 Datasheet, PDF (12/28 Pages) SyncMOS Technologies,Inc – 8-Bits Micro-controller With 64KB Flash ROM & IKB RAM & RTC & ADC & PWM & PDWU embedded

SyncMOS Technologies Inc.
SM89S16R1
8-Bits Micro-controller
With 64KB Flash ROM & IKB RAM & RTC & ADC & PWM & PDWU embedded
ALE
/PSEN
/RD
PORT0
PORT2
t _WHLH
t _LLDV
t _LLWL
t _RLRH
t _AVLL
t _LLAX
A0 - A7 (RI or DPL)
t _RLDV
t _RLAZ
t _RHDZ
t _RHDX
DATA IN
t _AVDV
t _AVWL
A8 - A15 of DPH or PORT2
A0 - A7 (PCL)
A8 - A15 (PCH)
Figure 8 External Data Memory read cycle
INSTR IN
ALE
/PSEN
/WR
PORT0
PORT2
t_WHLH
t_LLWL
t_WLWH
t_AVLL
t_LLAX
A0 - A7 (RI or DPL)
t_QVWH
t_QVWX
t_WHQX
DATA OUT
t_AVWL
A8 - A15 of DPH or PORT2
A0 - A7 (PCL)
INSTR IN
A8 - A15 (PCH)
Figure 9 External Data Memory write cycle
Instruction
0
ALE
CLOCK
TXD
RxD
1
2
3
4
5
6
7
8
t_XLXL
t_QVXH
t_XHQX
0
1
2
3
4
t_XHDV
t_XHDX
VALID
VALID
VALID
VALID
VALID
Figure10 UART waveform in Shift Register MODE
5
VALID
6
VALID
7
Set_RI
VALID
Specifications subject to change without notice contact your sales representatives for the most recent information.
12
SM89S16R1 V1.0 JANUARY 2005