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参数资料
| 型号： | MB9BF505NBGL |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PBGA112 |
| 封装： | 10 X 10 MM, 1.45 MM HEIGHT, 0.80 MM PITCH, PLASTIC, FBGA-112 |
| 文件页数： | 22/120页 |
| 文件大小： | 1277K |
| 代理商： | MB9BF505NBGL |
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118
8266D-MCU Wireless-06/12
ATmega128RFA1
This bit is reserved for IC test and should not be modified by the application firmware. If
set, this register bit disables the internal analog voltage regulator to apply an external
regulated 1.8V supply for the analog building blocks.
Table 9-51 AVREG_EXT Register Bits
Register Bits
Value
Description
0
Internal AVDD voltage regulator for the
analog section is enabled.
AVREG_EXT
1
Internal AVDD voltage regulator is disabled.
Bit 6 – AVDD_OK - AVDD Supply Voltage Valid
This register bit indicates if the internal 1.8V regulated voltage supply AVDD has
settled. The bit is set to logic high if AVREG_EXT = 1.
Table 9-52 AVDD_OK Register Bits
Register Bits
Value
Description
0
Analog voltage regulator disabled or supply
voltage not stable
AVDD_OK
1
Analog supply voltage has settled
Bit 5:4 – AVREG_TRIM1:0 - Adjust AVDD Supply Voltage
These bits are reserved for internal use. They allow adjusting the value of the analog
supply voltage (AVDD).
Table 9-53 AVREG_TRIM Register Bits
Register Bits
Value
Description
0
1.80V
1
1.75V
2
1.84V
AVREG_TRIM1:0
3
1.88V
Bit 3 – DVREG_EXT - Use External DVDD Regulator
This bit may be set in the Register, but is deactivated in the design. The DVREG_EXT
functionality to deactivate the digital voltage regulator is no implemented anymore
Table 9-54 DVREG_EXT Register Bits
Register Bits
Value
Description
0
Internal DVDD voltage regulator for the
digital section is enabled.
DVREG_EXT
1
Internal DVDD voltage regulator is disabled;
use external regulated 1.8V supply voltage
for the digital section.
Bit 2 – DVDD_OK - DVDD Supply Voltage Valid
This register bit indicates if the internal 1.8V regulated voltage supply DVDD has
settled. The bit is set to logic high if DVREG_EXT = 1.
Table 9-55 DVDD_OK Register Bits
Register Bits
Value
Description
0
Digital voltage regulator disabled or supply
voltage not stable
DVDD_OK
1
Digital supply voltage has settled
Bit 1:0 – DVREG_TRIM1:0 - Adjust DVDD Supply Voltage
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