ADUC7034BCPZ-RL Analog Devices Inc, ADUC7034BCPZ-RL Datasheet - Page 126

• Manufacturer Part Number: ADUC7034BCPZ-RL
• Description: IC,Battery Management,LLCC,48PIN,PLASTIC
• Manufacturer: Analog Devices Inc
• Series: MicroConverter® ADuC7xxxr

Specifications of ADUC7034BCPZ-RL

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 20.48MHz
• Connectivity: LIN, SPI, UART/USART
• Peripherals: POR, PSM, Temp Sensor, WDT
• Number Of I /o: 9
• Program Memory Size: 32KB (32K 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: 48-LFCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADuC7034
BIT SERIAL DEVICE (BSD) INTERFACE
BSD is a pulse-width modulated signal with three possible
states: sync, 0, and 1. These are detailed, along with their
associated tolerances, in Table 94. The frame length is 19 bits,
and communication occurs at 1200 bps ± 3%.
Table 94. BSD Bit Level Description
Parameter
TxD Rate
Bit Encoding
t
t
t
SYNC
0
1
Min
1164
1/16
5/16
10/16
131kHz
LHS INTERRUPT
5MHz
IRQEN[7]
Typ
1200
2/16
6/16
12/16
HARDWARE
LHSVAL0
LHSVAL1
UART
LHS
RxD ENABLE
LHSCON0[8]
RxD
TxD
Max
1236
3/16
8/16
14/16
INTERRUPT
LOGIC
LHS
Figure 52. BSD I/O Hardware Interface
Unit
bps
t
t
t
DISABLE
OUTPUT
PERIOD
PERIOD
PERIOD
HVCFG0[1:0]
LIN MODE
FOUR LIN
INTERRUPT
SOURCES:
BREAK LHSSTA[0]
START LHSSTA[1]
STOP LHSSTA[2]
BREAK
ERROR LHSSTA[4]
Rev. B | Page 126 of 136
INPUT
VOLTAGE
THRESHOLD
REFERENCE
BPF
TRIP REFERENCE
SHORT-CIRCUIT
INTERNAL
BSD COMMUNICATION HARDWARE INTERFACE
The ADuC7034 emulates the BSD communication protocol
using a GPIO, an IRQ, and the LIN synchronization hardware,
all of which are under software control.
VDD
INTERNAL
SHORT-CIRCUIT
SENSE
RESISTOR
OVERVOLTAGE
PROTECTION
LIN ENABLE
(INTERNAL
HVCFG0[5]
PULL-UP)
EXTERNAL
LIN PIN
IO_VSS
SCR
VDD
MASTER ECU
PROTECTION
DIODE
MASTER ECU
PULL-UP
C
LOAD