SyncMOS Technologies International, Inc.
SM5964A
8-Bit Micro-controller
With 64KB ISP Flash & TWSI & PWM & 1KB RAM embedded
A.) 1 byte, 1 Cycle Instruction
S1 S2 S3 S4
S5
S6
S1
S2
Read next OPCODE
Discard
Read next OPCODE
again
Read OPCODE
1 machine cycle
B.) 2 byte, 1 Cycle Instruction
S1
S2
S3
S4
S5
S6
S1
S2
Read OPCODE
Read 2’nd Byte
Read next OPCODE
1 machine cycle
C.) 1 byte, 2 Cycle Instruction
S1
S2
S3
S4
S5
S6
S1
S2
S3
S4
S5
S6
S1
S2
Read OPCODE
Read next OPCODE (Discard)
Read next
OPCODE
again
1’st cycle
2’nd cycle
D.) MOVX: 1 byte, 2 Cycle Instruction
ACCESS external memory
DATA
ADDR
S1
S2
S3
S4
S5
S6
S1
S2
S3
S4
S5
S6
S1
S2
Read next OPCODE
(Discard)
No Fetch
Read next
OPCODE
Again
No Fetch
Read OPCODE
1’st cycle
2’nd cycle
Figure 14 Timing of various instructions
Specifications subject to change without notice contact your sales representatives for the most recent information.
Ver 2.3 SM5964A 10/2006
15
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
