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BK2535 Datasheet(PDF) 79 Page - Beken Corporation

Part # BK2535
Description  FLIP51 MCURF
PDF  133 Pages
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Manufacturer  BEKEN [Beken Corporation]
Direct Link  http://www.bekencorp.com/en
Logo BEKEN - Beken Corporation

BK2535 Datasheet(HTML) 79 Page - Beken Corporation

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BK2535 datasheet
© 2015 Beken Corporation
Proprietary and Confidential
Page 79 of 133
6.8.
FLASH control
Except the main 32k FLASH program space, there are Two 256 bytes (NVR
space) information space had been integrated in BK2535. This main and the
NVR space could be operated by MCU directly. The FLIP51 would enter IDLE
mode during operating the main/NVR FLASH space.
FLASH control base address: 0X900
ADDR
register
7
6
5
4
3
2
1
0
0x00
FLASH_KEY
A5/49
0x01
FLASH _CTL 
W 
R 
E  
 
 
N/M 
Clk_en 
0x02
FLASH _ADR 
Addr[7:0] 
0x03
FLASH _ADR
Addr[15:8] 
0x04
FLASH _DAT 
Data[7:0] 
Table 57 FLASH control Register1
addr
register
7
6
5
4
3
2
1
0
0X05
WP0
This register must equal to A5 when E/W operation
0X06
WP1 
This register must equal to C3 when E/W operation 
0X07
reserved
Don’t write any value in it 
0X08
NVR_WF
Write any value in it will forbid E/W operation on NVR space 
0X09
MAIN_WF
Write any value in it will forbid E/W operation on MAIN space 
Table 58 FLASH control Register2
//FLASH_CTL register
Control bit [7]: write, write 1 to operate, the bit will be cleared automatically after
operate.
Control bit [6]: read, write 1 to operate, the bit will be cleared automatically after
operate.
Control bit [5]: erase, write 1 to operate, the bit will be cleared automatically after
operate.
Control bit [1]: NVRMAIN space control. 0: NVR space; 1: main space
Control bit [0]: clock enable bit; the clock of flash operate module will be closed
when this bit=0. Once a operation is finished, you should clear the clk_en bits for
forbidding any operation to the FLASH space.
Note1: only one operation can run at the same time.



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