SyncMOS Technologies International, Inc.
SM5964A
8-Bit Micro-controller
With 64KB ISP Flash & TWSI & PWM & 1KB RAM embedded
ALE
tWHLH
/PSEN
tLLDV
tLLWL
tRLRH
/RD
PORT0
PORT2
tAVLL
tRLDV
tRLAZ
tRHDZ
tRHDX
DATA IN
tLLAX
A0 - A7 (RI or DPL)
A0 - A7 (PCL)
INSTR IN
tAVDV
tAVWL
A8 - A15 of DPH or PORT2
A8 - A15 (PCH)
Figure 8 external memory read cycle
ALE
/PSEN
/WR
tWHLH
tLLWL
tWLWH
tQVWH
tQVWX
DATA OUT
tAVLL
tLLAX
tWHQX
A0 - A7 (RI or DPL)
PORT0
PORT2
A0 - A7 (PCL)
INSTR IN
tAVWL
A8 - A15 of DPH or PORT2
A8 - A15 (PCH)
Figure 9 external memory write cycle
nstruction
ALE
0
1
2
3
4
5
6
7
8
tXLXL
CLOCK
TXD
tQVXH
0
tXHQX
1
2
3
4
5
6
7
tXHDV
VALID
tXHDX
Set_R
VALID
RxD
VALID
VALID
VALID
VALID
VALID
VALID
Figure 10 UART waveform in Shift Register MODE
Specifications subject to change without notice contact your sales representatives for the most recent information.
Ver 2.3 SM5964A 10/2006
11
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
