ADUC7039BCP6Z-RL Analog Devices Inc, ADUC7039BCP6Z-RL Datasheet - Page 24

• 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

ADuC7039
Normal kernel execution time, excluding LIN download, is less
than 5 ms. It is only possible to enter and leave LIN download
mode through a reset.
SRAM Address 0 to Address 0x2B are modified during normal
kernel execution, SRAM Address 0xFF to Address 0x110 are
also modified during a LIN download.
Note that even with NTRST = 0, user code is not executed
unless Address 0x1FC contains either 0x16400000 or the
checksum of Page 0, excluding Address 0x1FC. If Address
LIN RECEIVED?
HANDLE LIN
COMMAND
YES
YES
0x801FC
PAGE0 CRC?
0x16400000
0x801FC =
0x801FC =
RESET
NO
NO
NO
NO
NO
COPY MANID TO MMRs
INITIALIZE HV CHIP
INITIALIZE WDT
Figure 9. ADuC7039 Kernel Flowchart
NTRST = 1?
YES
YES
NO
KICK WDT
KERNEL
COMMAND?
CRC
RESET
YES
Rev. B | Page 24 of 92
NO
YES
YES
NTRST = 1?
0x1FC does not contain this information, user code is not
executed and LIN download mode is entered. During kernel
execution, JTAG access is disabled.
The ADuC7039 is delivered with flash user space fully erased
and if NTRST = 0 at first power-up, the LIN download mode
is entered.
With NTRST = 1, user code is always executed and JTAG is
enabled.
NO
SOFTWARE
RESET
TRY TO SWITCH
POWER DOWN
USER RESET?
CRC ERROR?
USER CODE
MULTIPLE
KICK WDT
OFF WDT
RUN
YES