参数资料
型号: ADUC7032BSTZ-88-RL
厂商: Analog Devices Inc
文件页数: 7/120页
文件大小: 0K
描述: IC MCU 96K FLASH DUAL 48LQFP
标准包装: 2,000
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: 带卷 (TR)
ADuC7032-8L
Rev. A | Page 104 of 120
LIN (LOCAL INTERCONNECT NETWORK) INTERFACE
GPIO_12
FUNCTION
SELECT
GP2CON[20]
GPIO_12
GP2DAT[29]
AND
GP2DAT[21]
ADuC7032-8L
UART
LHS
HARDWARE
ADuC7032-8L
RxD
TxD
BPF
INTERNAL
SHORT-CIRCUIT
TRIP REFERENCE
INTERNAL
SHORT-CIRCUIT
SENSE
RESISTOR
SHORT-CIRCUIT
CONTROL
HVCFG1[2]
OUTPUT
DISABLE
LIN MODE
HVCFG0[1:0]
INPUT
VOLTAGE
THRESHOLD
REFERENCE
LIN ENABLE
(INTERNAL
PULL-UP)
HVCFG0[5]
FOUR LIN
INTERRUPT
SOURCES
BREAK LHSSTA[0]
START LHSSTA[1]
STOP LHSSTA[2]
BREAK
ERROR LHSSTA[4]
VDD
RxD ENABLE
LHSCON0[8]
LHSVAL0
LHSVAL1
LHS INTERRUPT
IRQEN[7]
5MHz
131kHz
LHS
INTERRUPT
LOGIC
VDD
SCR
IO_VSS
OVERVOLTAGE
PROTECTION
EXTERNAL
LIN PIN
MASTER ECU
PROTECTION
DIODE
MASTER ECU
PULL-UP
CLOAD
0
59
86
-0
38
Figure 40. LIN I/O, Block Diagram
The ADuC7032-8L 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 kBaud
to 20 kBaud and is compatible with the LIN 2.0 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
emulation is shown in Figure 40. The LIN is clocked from the
low power oscillator, for the break timer; and a 5 MHz output from
the PLL, which is used for the sync byte timing.
LIN MMR DESCRIPTION
The LIN hardware synchronization (LHS) functionality is
controlled using the following five MMRs:
LHSSTA: status register that contains information flags
describing the current status of the interface
LHSCON0: Control Register 0, which controls configuration
of the LHS timer
LHSCON1: start and stop edge control register that dictates at
which edge of the LIN synchronization byte the LHS starts
or stops counting.
LHSVAL0: 16-bit timer that is controlled by LHSCON0.
LHSVAL1: break timer register.
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