SM39A16M1
8-Bit Micro-controller
16KB with ISP Flash
& 1K+256B RAM embedded
FOSVOS TEL: 021-58998693
Product List.........................................................................................................................................................................4
Description..........................................................................................................................................................................4
Ordering Information...........................................................................................................................................................4
Features..............................................................................................................................................................................4
Pin Configuration ................................................................................................................................................................5
Block Diagram.....................................................................................................................................................................6
Special Function Register (SFR) ........................................................................................................................................8
Function Description .........................................................................................................................................................15
1.
General Features.................................................................................................................................................15
Embedded Flash.........................................................................................................................................15
IO Pads .......................................................................................................................................................15
Instruction timing Selection .........................................................................................................................15
Clock Out Selection.....................................................................................................................................16
RESET ........................................................................................................................................................16
1.1
1.2
1.3
1.4
1.5
1.5.1
1.5.2
1.5.3
1.5.4
1.5.5
1.5.6
Hardware RESET function .................................................................................................................16
Software RESET function...................................................................................................................16
Reset status........................................................................................................................................17
Time Access Key register (TAKEY)....................................................................................................17
Software Reset register (SWRES) .....................................................................................................18
Example of software reset..................................................................................................................18
1.6
Clocks .........................................................................................................................................................18
Instruction Set......................................................................................................................................................19
Memory Structure ................................................................................................................................................23
Program Memory ........................................................................................................................................23
Data Memory...............................................................................................................................................24
Data memory - lower 128 byte (00h to 7Fh) ...............................................................................................24
Data memory - higher 128 byte (80h to FFh)..............................................................................................24
Data memory - Expanded 1K Bytes ( 0000h ~ 0x03FFh)...........................................................................24
CPU Engine .........................................................................................................................................................25
Accumulator ................................................................................................................................................25
B Register ...................................................................................................................................................25
Program Status Word..................................................................................................................................26
Stack Pointer...............................................................................................................................................26
Data Pointer ................................................................................................................................................26
Data Pointer 1 .............................................................................................................................................27
Clock control register ..................................................................................................................................27
Interface control register .............................................................................................................................28
PAGESEL (Page Select).............................................................................................................................28
GPIO....................................................................................................................................................................30
Multiplication Division unit....................................................................................................................................32
Operating registers of the MDU ..................................................................................................................32
Operation of the MDU .................................................................................................................................33
2.
3.
3.1
3.2
3.3
3.4
3.5
4.
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5.
6.
6.1
6.2
6.2.1
6.2.2
6.2.3
First phase: Loading the MDx registers. ............................................................................................33
Second phase: Executing calculation. ...............................................................................................34
Third phase: Reading the result from the MDx registers. ..................................................................34
6.3
6.4
Normalizing .................................................................................................................................................34
Shifting ........................................................................................................................................................34
Timer 0 and Timer 1.............................................................................................................................................35
Timer/counter mode control register (TMOD).............................................................................................35
Timer/counter control register (TCON) .......................................................................................................36
Peripheral Frequency control register.........................................................................................................37
Mode 0 (13-bit Counter/Timer)....................................................................................................................37
Mode 1 (16-bit Counter/Timer)....................................................................................................................38
Mode 2 (8-bit auto-reload Counter/Timer) ..................................................................................................38
Mode 3 (Timer 0 acts as two independent 8 bit Timers / Counters) ...........................................................39
Timer 2 and Capture Compare Unit.....................................................................................................................40
7.
7.1
7.2
7.3
7.4
7.5
7.6
7.7
8.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M069 Ver C SM39A16M1 7/31/2013
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