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AC30M1x64/1x32
ABOV Semiconductor
BOOTCR
Boot ROM Remap Clear Register
4.2.10
Boot ROM remap clear register. This register is 8-bit register.
BOOTCR=0x4000_0174
7
6
5
4
3
2
1
0
SREMAP
BOOTROM
0
0
0
0
0
0
0
1
R
4
SREMAP
SRAM remap enable register
When this bit is set, SRAM will be located at 0x0000_0000
address. This bit location can be accessed in AMBA mode
Flash memory also can be read at 0x3000_0000 while SREAMP
enable
0
BOOTROM
Boot Mode (only can be written in boot loader mode)
This bit is used to clear boot loader mode at end of boot code,
user cannot re-activate this bit. Always 0 in user mode.
Note) SREMAP bit can be writable when AMBA mode is enabled
FM->MR=0x81;
FM->MR=0x28;
// AMBA mode enter
… // change BOOTCR[4](SREMAP) value
FM->MR=0; // AMBA mode exit
FM.WPROT
Flash Memory Write Protection Register
4.2.11
Internal flash memory write protection register. This registers will be update from OTP area of Flash while boot
sequence, so user cannot write or clear any bit directly.
FM.WPROT=0x4000_0178
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
WP
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0xFFFF
RW
15
2
WP[15:2]
Sector(4KB block each) protect
Each bit enable write protect corresponding 4K block when WP
bit is set (‘1’).
If user want to set WP[15:2], MSB 8-bit(bit [31:24]) must be 0x87
1
0
WP[1:0]
Sector(4KB block each) protect
Each bit enable write protect corresponding 4K block when WP
bit is set (‘1’).
If user want to set WP[1:0], MSB 8-bit(bit [31:24]) must be 0x98
Summary of Contents for AC30M1x32
Page 3: ...3 246 ABOV Semiconductor INTRODUCTION SECTION 1 INTRODUCTION ...
Page 4: ...4 246 4 246 AC30M1x64 1x32 ABOV Semiconductor OVERVIEW CHAPTER 1 ...
Page 18: ...18 246 18 246 ABOV Semiconductor AC30M1x64 1x32 CPU CHAPTER 2 ...
Page 22: ...22 246 22 246 ABOV Semiconductor AC30M1x64 1x32 Boot Mode CHAPTER 3 ...
Page 26: ...26 246 26 246 ABOV Semiconductor AC30M1x64 1x32 SECTION 2 PERIPHERALS ...
Page 27: ...27 246 ABOV Semiconductor System Control Unit SCU SYSTEM CONTROL UNIT SCU CHAPTER 1 ...
Page 69: ...69 246 ABOV Semiconductor Port Control Unit PCU PORT CONTROL UNIT PCU CHAPTER 2 ...
Page 85: ...85 246 ABOV Semiconductor General Purpose I O GPIO GENERAL PURPOSE I O GPIO CHAPTER 3 ...
Page 92: ...92 246 92 246 AC30M1x64 1x32 ABOV Semiconductor FLASH MEMORY CONTROLLER CHAPTER 4 ...
Page 105: ...105 246 ABOV Semiconductor Internal SRAM INTERNAL SRAM CHAPTER 5 ...
Page 107: ...107 246 ABOV Semiconductor Watch Dog Timer WATCH DOG TIMER WDT CHAPTER 6 ...
Page 113: ...113 246 ABOV Semiconductor 16 bit Timer 16 BIT TIMER CHAPTER 7 ...
Page 129: ...129 246 ABOV Semiconductor FRT FREE RUN TIMER FRT CHAPTER 8 ...
Page 134: ...134 246 134 246 ABOV Semiconductor AC30M1x64 1x32 FUNCTION DESCRIPTION 8 3 ...
Page 135: ...135 246 UART ABOV Semiconductor UNIVERSAL ASYNCHRONOUS CHAPTER 9 RECEIVER TRANSMITTER UART ...
Page 151: ...151 246 ABOV Semiconductor UART Figure 9 6 Transmit interrupt timing diagram ...
Page 152: ...152 246 152 246 ABOV Semiconductor AC30M1x64 1x32 SERIAL PERIPHERAL INTERFACE SPI CHAPTER 10 ...
Page 164: ...164 246 164 246 ABOV Semiconductor AC30M1x64 1x32 I2 C Interface CHAPTER 11 ...
Page 185: ...185 246 ABOV Semiconductor Motor PWM MOTOR PULSE WIDTH MODULATOR CHAPTER 12 MPWM ...
Page 215: ...215 246 ABOV Semiconductor Divider DIVIDER DIV64 CHAPTER 13 ...
Page 221: ...221 246 ABOV Semiconductor 12 BIT A D Converter 12BIT A D CONVERTER CHAPTER 14 ...
Page 235: ...235 246 ABOV Semiconductor CHARACTERISTIC SECTION 3 CHARACTERISTIC ...
Page 236: ...236 246 236 246 ABOV Semiconductor AC30M1x64 1x32 Electrical Characteristic CHAPTER 1 ...
Page 243: ...243 246 ABOV Semiconductor Package Package CHAPTER 2 ...