參數資料
型號: ADUC7039BCP6Z-RL
廠商: Analog Devices Inc
文件頁數: 79/92頁
文件大?。?/td> 0K
描述: IC MCU ARM7 BATT SENSER 32LFCSP
標準包裝: 2,500
系列: MicroConverter® ADuC7xxx
核心處理器: ARM7
芯體尺寸: 16/32-位
速度: 20.48MHz
連通性: LIN,SPI
外圍設備: POR,溫度傳感器,WDT
輸入/輸出數: 6
程序存儲器容量: 64KB(32K x 16)
程序存儲器類型: 閃存
RAM 容量: 1K x 32
電壓 - 電源 (Vcc/Vdd): 3.5 V ~ 18 V
數據轉換器: A/D 2x16b
振蕩器型: 內部
工作溫度: -40°C ~ 115°C
封裝/外殼: 32-VFQFN 裸露焊盤,CSP
包裝: 帶卷 (TR)
ADuC7039
Data Sheet
Rev. D | Page 80 of 92
High Voltage Configuration Register
Name:
HVCFG
Address:
Indirectly addressed via the HVCON high voltage interface
Default Value: 0x00
Access:
Read/write
Function:
This 8-bit register controls the function of high voltage circuits on the ADuC7039. This register is not an MMR and
does not appear in the MMR memory map. It is accessed via the HVCON registered interface. Data to be written to
this register is loaded via the HVDAT MMR, and data is read back from this register via the HVDAT MMR.
Table 59. HVCFG Bit Designations
Bit
Description
7 to 5
Reserved.
4
Low voltage flag (LVF) enable bit.
This bit is cleared to 0 to disable the LVF function.
This bit is set to 1 to enable the LVF function. The low voltage flag can be interrogated via HVSTA[2]after power-up to
determine if the REG_DVDD voltage previously dropped below 2.1 V.
3
Voltage attenuator diagnostic enable bit.
This bit is set to 1 to turn on a current source, which adds a differential voltage to the voltage channel measurement.
This bit is cleared to 0 to disable the voltage attenuator diagnostic.
2
LIN driver re-enable bit.
This bit is set to 1 to re-enable the LIN driver that would have been disabled as a result of a short-circuit current event.
This bit is cleared to 0 automatically.
1
Enable/disable LIN short-circuit protection.
This bit is set to 1 to enable passive short-circuit protection on the LIN pin. In this mode, a short-circuit event on the
LIN pin generates a high voltage interrupt (if enabled in IRQEN[10]) and asserts the appropriate status bit in HVSTA
but does not disable the short-circuiting pin.
This bit is cleared to 0 to enable active short-circuit protection on the LIN pin. In this mode, during a short-circuit
event, the LIN pin generates a high voltage interrupt (IRQSTA[10]), asserts HVSTA[0], and automatically disables the
short-circuiting pin. When disabled, the I/O pin can only be re-enabled by writing to HVCFG[2].
A LIN short circuit event must last longer than 20 s to be detected.
0
LIN operating mode.
0 = LIN disabled.
1 = LIN enabled.
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