ADUC7039BCP6Z-RL Analog Devices Inc, ADUC7039BCP6Z-RL Datasheet - Page 79

• Manufacturer Part Number: ADUC7039BCP6Z-RL
• Description: Flash 64k ARM7 Dual 16-Bit ADC LIN I.C.
• Manufacturer: Analog Devices Inc
• Series: MicroConverter® ADuC7xxxr

Specifications of ADUC7039BCP6Z-RL

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 20.48MHz
• Connectivity: LIN, SPI
• Peripherals: POR, Temp Sensor, WDT
• Number Of I /o: 6
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 18 V
• Data Converters: A/D 2x16b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 115°C
• Package / Case: 32-LFCSP
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption

High Voltage Configuration Register
Name:
Address:
Default Value:
Access:
Function:
Table 59. HVCFG Bit Designations
Bit
7 to 5
4
3
2
1
0
HVCFG
Indirectly addressed via the HVCON high voltage interface
0x00
Read/write
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.
Description
Reserved.
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 HVMON[3] after power-up to
determine if the REG_DVDD voltage previously dropped below 2.1 V.
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.
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.
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 μs to be detected.
LIN operating mode.
0 = LIN disabled.
1 = LIN enabled.
Rev. B | Page 79 of 92
ADuC7039