aduc7030 Analog Devices, Inc., aduc7030 Datasheet - Page 130
aduc7030
Manufacturer Part Number
aduc7030
Description
Integrated Precision Battery Sensor For Automotive
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADUC7030.pdf
(150 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
aduc7030BCPZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
aduc7030BCPZ-8V
Manufacturer:
Analog Devices Inc
Quantity:
135
- Current page: 130 of 150
- Download datasheet (2Mb)
ADuC7030/ADuC7033
Serial Test Interface Output Structure
The Serial Test Interface is a high voltage output, which
incorporates a low side driver, short circuit protection and
diagnostic pin read-back capability. The output driver circuit
configuration is shown in Figure 40 below.
Using the Serial Test Interface
Data will only begin transmission once configuration of the STI
port has been completed in the following sequence:
a.
b.
c.
Timer 4 is configured with the correct load value to generate an
overflow at the required baud rate. If the STI port is being used
to transmit ADC conversion results, then the baud rate must be
Configure Timer4 for baud rate generation
Correctly enable STICON using STIKEY0 and STIKEY1
for secure access
Required bytes to be transmitted are written into
STIDAT0, STIDAT1 and STIDAT2.
READ-BACK
GP2CON[24]
TRANSMIT
HVSTA[7]
PIN
STI
Figure 40. STI Output Structure
PROTECTION CONTROL
SHORT CIRCUIT
HVCFG1[2]
REF1
STI
Rev. PrE | Page 130 of 150
sufficient to output each ADC result (16-bits) prior to next
ADC conversion result being available.
For example, if the ADC is sampling at 1kHz, then the baud rate
has to be sufficient to output 36 bits, 3 x 8 bits (16-bit ADC
result and a checksum byte for example) + 3 x 1 Start bits + 3 x
1 Parity bits + 3 x 2Stop Bits = 36 bits. Therefore, the Serial Test
Interface must transmit data at greater than 36kbps. The closest
standard baud rate is 38.4kbps.
Therefore the reload value written to the Timer4 load MMR
(T4LD) is 0106h(267d). This value is calculated as shown below
and is based on a pre-scalar of 1, using a core clock of
10.24MHz.
Once the Timer4 load value is written and the Timer itself is
configured and enabled using the T4CON MMR, the STI port
must be configured. The is done by writing to the STICON
MMR in a specific sequence using the STIKEY0 and STIKEY1
MMRs as described earlier.
Finally, the STI port will not begin transmission until the
required number of transmit bytes is written into the STIDATx
MMRs. As soon as STI starts transmitting, the value in the
STICON MMR will change from the value initially written to
this register. User code can ensure that all data is transmitted by
continuously polling the STICON MMR until it reverts back to
the value originally written to it. To disable the serial interface,
user code must write a 0 to STICON[0].
T 4
LD
= 10.24MHz/ 38.4kbps = 267
CoreClockF
DesiredBau
Preliminary Technical Data
requency
dRate
Related parts for aduc7030
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Analog Divider
Manufacturer:
Analog Devices, Inc.
Datasheet:
Part Number:
Description:
Analog Front End For Adsl
Manufacturer:
Analog Devices, Inc.
Datasheet:
Part Number:
Description:
Lc2mos Complete, 12-bit Analog I/o System
Manufacturer:
Analog Devices, Inc.
Datasheet:
Part Number:
Description:
Cmos 4/8 Channel Analog Multiplexers
Manufacturer:
Analog Devices, Inc.
Datasheet:
Part Number:
Description:
Low Cost, Low Power Cmos General Purpose Analog Front End
Manufacturer:
Analog Devices, Inc.
Datasheet:
Part Number:
Description:
2.5 V To 5.0 V Micropower, Precision Series Mode Voltage References
Manufacturer:
Analog Devices, Inc.
Datasheet:
Part Number:
Description:
Stereo, Single-supply 18-bit Integrated Dac
Manufacturer:
Analog Devices, Inc.
Datasheet:
Part Number:
Description:
Multichannel 24-bit, 192 Khz, Dac
Manufacturer:
Analog Devices, Inc.
Datasheet:
Part Number:
Description:
Ac?97 Soundmax Codec
Manufacturer:
Analog Devices, Inc.
Datasheet:
Part Number:
Description:
Complete Dual 18-bit 16 X Fs Audio Dac
Manufacturer:
Analog Devices, Inc.
Datasheet:
Part Number:
Description:
Sampleport Stereo Asynchronous Sample Rate Converters
Manufacturer:
Analog Devices, Inc.
Datasheet:
Part Number:
Description:
U.s./international Modem Daa Line Codec Chipset
Manufacturer:
Analog Devices, Inc.
Datasheet:
Part Number:
Description:
Low Distortion 750 Mhz Closed-loop Buffer Amp
Manufacturer:
Analog Devices, Inc.
Datasheet:
Part Number:
Description:
High Speed Active Load With Inhibit Mode
Manufacturer:
Analog Devices, Inc.
Datasheet:
Part Number:
Description:
Cmos 80 Mhz, 10-bit Video Dac
Manufacturer:
Analog Devices, Inc.
Datasheet: