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參數(shù)資料
| 型號： | MJ80C31U-36:D |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | MICROCONTROLLER |
| 文件頁數(shù)： | 92/101頁 |
| 文件大?。?/td> | 3398K |
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113
8168C-MCU Wireless-02/10
AT86RF212
regulators need to be switched off by setting the register bits to the values
AVREG_EXT = 1 and DVREG_EXT = 1. A regulated external supply voltage of 1.8 V
needs to be connected to the pins 13, 14 (DVDD), and pin 29 (AVDD). When turning on
the external supply, ensure a sufficiently long stabilization time before interacting with
the AT86RF212.
7.5.3 Data Interpretation
The status bits AVDD_OK = 1 and DVDD_OK = 1 of register 0x10 (VREG_CTRL)
indicate an enabled and stable internal supply voltage. Reading value 0 indicates a
disabled voltage regulator or the internal supply voltage is not settled to the final value.
Setting AVREG_EXT = 1 and DVREG_EXT = 1 forces the signals AVDD_OK and
DVDD_OK to 1.
7.5.4 Register Description
Register 0x10 (VREG_CTRL):
This register controls the use of the voltage regulators and indicates the status of these.
Table 7-17. Register 0x10 (VREG_CTRL)
Bit
7
6
5
4
Name
AVREG_EXT
AVDD_OK
Reserved
Read/Write
R/W
R
R/W
Reset Value
0
Bit
3
2
1
0
Name
DVREG_EXT
DVDD_OK
Reserved
Read/Write
R/W
R
R/W
Reset Value
0
Bit 7 – AVREG_EXT
If set, this register bit disables the internal analog voltage regulator to apply an external
regulated 1.8 V supply for the analog building blocks.
Table 7-18. Regulated Voltage Supply Control for Analog Building Blocks
Register Bit
Value
Description
0
Internal voltage regulator enabled (analog domain)
AVREG_EXT
1
Internal voltage regulator disabled; use external
regulated 1.8 V supply voltage for the analog domain
Bit 6 – AVDD_OK
This register bit indicates if the internal 1.8 V regulated voltage supply AVDD has
settled. The bit is set to logic high if AVREG_EXT = 1.
Table 7-19. Regulated Voltage Supply Control for Analog Building Blocks
Register Bit
Value
Description
0
Analog voltage regulator disabled or supply voltage not
stable
AVDD_OK
1
Analog supply voltage has settled
Bit 5:4 – Reserved
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