参数资料
型号: ADUC7032BSTZ-8V-RL
厂商: Analog Devices Inc
文件页数: 19/128页
文件大小: 0K
描述: IC BATTERY SENSOR PREC 48-LQFP
标准包装: 1
系列: MicroConverter® ADuC7xxx
核心处理器: ARM7
芯体尺寸: 16/32-位
速度: 20.48MHz
连通性: LIN,SPI,UART/USART
外围设备: POR,PSM,温度传感器,WDT
输入/输出数: 9
程序存储器容量: 96KB(48K x 16)
程序存储器类型: 闪存
RAM 容量: 1.5K x 32
电压 - 电源 (Vcc/Vdd): 3.5 V ~ 18 V
数据转换器: A/D 2x16b
振荡器型: 内部
工作温度: -40°C ~ 105°C
封装/外壳: 48-LQFP
包装: 标准包装
其它名称: ADUC7032BSTZ-8V-RLDKR
Preliminary Technical Data
ADuC7032
Rev. PrD | Page 115 of 128
LIN (LOCAL INTERCONNECT NETWORK ) INTERFACE
The ADuC7032 features a high voltage physical interface
between the ARM7 MCU core and an external LIN bus. The
LIN interface operates as a slave only interface, operating from
1-20KBaud, and is compatible with the LIN2.0 standard. The
pull-up resistor required for a slave node is on-chip, reducing
the need for external circuitry. The LIN protocol is emulated
using the on-chip UART, an IRQ, a dedicated LIN Timer and
the high voltage transceiver which is also incorporated on-chip.
This is shown in Figure 38. The LIN is clocked from the Low
Power Oscillator, for the Break Timer, and a 5MHz output from
the PLL which is used for the synch byte timing.
LIN MMR DESCRIPTION
The LIN Hardware Synchronization (LHS) functionality is
controlled via five MMRs. The function of each MMR is
described below:.
LHSSTA
:
LHS Status Register. This MMR contains
information flags which describe the current
status on the interface.
LHSCON0
:
LHS Control Register 0. This MMR controls the
configuration of the LHS Timer.
LHSCON1
:
LHS Start and Stop Edge Control Register
Dictates which edge of the LIN Synchronization
byte the LHS starts/stops counting.
LHSVAL0
:
LHS Synchronization 16Bit Timer, which is
controlled by LHSCON0.
LHSVAL1
:
LHS Break Timer Register
INTERNAL
SHORT
CIRCUIT
SENSE
RESISTOR
5MHz
OUTPUT
DISABLE
INTERNAL
SHORT-CIRCUIT
TRIP REFERENCE
OVER
VOLATGE
PROTECTION
EXTERNAL
LIN PIN
CLOAD
MASTER ECU
PULL-UP
LIN ENABLE
(INTERNAL
PULL-UP)
HVCFG0[5]
IO_VSS
X
SCR
VDD
MASTER ECU
PROTECTION
DIODE
INPUT
VOLTAGE
THRESHOLD
REFERENCE
RxD ENABLE
LHSCON0[8]
ADuC7032
UART
RxD
TxD
ADuC7032
LHS
HARDWARE
LHS INTERRUPT
IRQEN[7]
LHSVAL0
LHSVAL1
131KHz
LHS
INTERRUPT
LOGIC
FOUR LIN
INTERRUPT
SOURCES
BREAK LHSSTA[0]
START LHSSTA[1]
STOP LHSSTA[2]
BREAK
ERROR LHSSTA[4]
LIN MODE
HVCFG0[1:0]
GPIO12
GP2DAT[29
&
GP2DAT21
GPIO12
FUNCTION
SELECT
GP2CON[20]
SHORT-CIRCUIT
CONTROL
HVCFG1[2]
Figure 38 : LIN I/O, Block Diagram
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