BK2450
© 2011 Beken Corporation Proprietary and Confidential Page 3 of 78
Table of Contents
1 Introduction ................................................................................................................. 8
2 Feature......................................................................................................................... 8
2.1 BK2451 ................................................................................................................. 8
2.2 BK2452 ................................................................................................................. 8
3 Block Diagram ............................................................................................................ 9
BK2451 ........................................................................................................................... 9
BK2452 ........................................................................................................................... 9
4 PIN information ........................................................................................................ 10
4.1 BK5100 RAM version (only used for development) .......................................... 10
4.2 BK2451D ............................................................................................................ 12
4.3 BK2452M-SOP ................................................................................................... 13
4.4 BK2452M-QFN .................................................................................................. 14
5 BK51 Micro-Controller ............................................................................................ 15
5.1 Instruction Set ..................................................................................................... 15
5.2 Memory organization .......................................................................................... 21
5.2.1 Program memory ......................................................................................... 21
5.2.2 Data memory ................................................................................................ 21
5.2.3 General register ............................................................................................ 23
5.2.4 Bit address space .......................................................................................... 23
5.2.5 Stack ............................................................................................................. 23
5.2.6 SFR .............................................................................................................. 24
5.3 Power management ............................................................................................. 27
5.3.1 Work State ................................................................................................... 28
5.3.2 Wake Up ...................................................................................................... 29
5.4 Interrupt............................................................................................................... 30
5.4.1 Interrupt priority........................................................................................... 30
5.4.2 Interrupt sampling ........................................................................................ 31
5.4.3 Clear interrupt .............................................................................................. 32
5.4.4 Register relevant to interrupt ....................................................................... 32
6 Reset system.............................................................................................................. 37
7 Clock system ............................................................................................................. 38
8 General I/O................................................................................................................ 39
8.1 Basic function ..................................................................................................... 39
8.2 Wake up function ................................................................................................ 39
8.3 Second function of port ....................................................................................... 40
8.3.1 Sencond function ......................................................................................... 40
8.3.2 SECOND FUCNTION FOR GPIO ............................................................. 41
9 Watch Dog ................................................................................................................ 42
10 Timer ......................................................................................................................... 43
10.1 Timer0 and Time1............................................................................................... 43
10.1.1 Mode0 .......................................................................................................... 44
10.1.2 Mode1 .......................................................................................................... 45
10.1.3 Mode2 .......................................................................................................... 45
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