MA015 Datasheet, PDF (2/29 Pages) Megawin Technology Co., Ltd – Build-in watchdog timer

MA015 Datasheet
Version 2.00
Table of Contents
1 Features ............................................................................................................ 3
1.1
Application Field.................................................................................................................. 3
2 General Description........................................................................................... 4
3 Pin Configurations ............................................................................................. 5
3.1
Pad Assignment .................................................................................................................. 5
3.2
Pin Description .................................................................................................................... 6
4 Block Diagram ................................................................................................... 7
5 Function Description.......................................................................................... 8
5.1
Registers ............................................................................................................................. 8
5.2
Accumulator ........................................................................................................................ 8
5.3
Index Register(X,Y)............................................................................................................. 8
5.4
Processor Status Register .................................................................................................. 8
5.5
Program Counter(PC) ......................................................................................................... 8
5.6
Stack Point(S) ..................................................................................................................... 8
6 Memory Organization ........................................................................................ 9
6.1
SFR Mapping .................................................................................................................... 10
7 System Control Registers ................................................................................ 11
8 Interrupt ........................................................................................................... 12
8.1
Interrupt Register .............................................................................................................. 12
8.2
Interrupt System................................................................................................................ 13
9 Reset ............................................................................................................... 14
9.1
Low Voltage Reset (LVR).................................................................................................. 14
9.2
Watchdog Timer (WDT) .................................................................................................... 14
9.3
Reset OK .......................................................................................................................... 15
10 Power Control............................................................................................. 16
10.1
Power Control Register ..................................................................................................... 16
11 Timer .......................................................................................................... 17
11.1
Timer0 ............................................................................................................................... 17
11.2
Timer1 ............................................................................................................................... 18
11.3
Timer2 ............................................................................................................................... 19
12 Configurable I/O Ports ................................................................................ 20
12.1
Port 0 ................................................................................................................................ 20
12.2
Port 1 ................................................................................................................................ 21
12.3
Port 2 ................................................................................................................................ 21
12.4
Port 3 ................................................................................................................................ 22
13 Mask Option ............................................................................................... 23
14 Application Circuit....................................................................................... 24
15 Electrical Characteristics ............................................................................ 25
15.1
Absolute Maximum Rating ................................................................................................ 25
15.2
DC Characteristics ............................................................................................................ 25
15.3
AC Characteristics ............................................................................................................ 26
16 Revision History ......................................................................................... 27
This document information is the intellectual property of Megawin Technology.
 Megawin Technology Co., Ltd. 2011 All right reserved.
QP-7300-03D
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