参数资料
型号: ADUC7034BCPZ
厂商: Analog Devices Inc
文件页数: 132/136页
文件大小: 0K
描述: IC MCU FLASH 32K ANLG IO 48LFCSP
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: 32KB(16K x 16)
程序存储器类型: 闪存
RAM 容量: 1K 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 ~ 115°C
封装/外壳: 48-VFQFN 裸露焊盘,CSP
包装: 托盘
ADuC7034
Rev. B | Page 95 of 136
and the indirect register data being read back into the HVDAT
unctions are controlled and
cillator
unctionality
gnostics
uffer circuit
HIGH VOLTAGE PERIPHERAL CONTROL INTERFACE
The ADuC7034 integrates several high voltage circuit functions
that are controlled and monitored through a registered interface
consisting of two MMRs, namely, HVCON and HVDAT. The
HVCON register acts as a command byte interpreter, allowing the
microcontroller to indirectly read or write 8-bit data (the value
in HVDAT) from or to one of four high voltage status or con-
figuration registers. These high voltage status and configuration
registers are not MMRs but are registers commonly referred to
as indirect registers, that is, they can only be accessed (as the
name suggests) indirectly via the HVCON and HVDAT MMRs.
The physical interface between the HVCON register and the
indirect high voltage registers is a 2-wire (data and clock) serial
interface based on a 2.56 MHz serial clock. Therefore, there is a
finite 10 μs (maximum) latency between the MCU core writing
a command into HVCON and the command or data reaching
the indirect high voltage registers. There is also a finite 10 μs
latency between the MCU core writing a command into HVCON
register. A busy bit (for example, Bit 0 of the HVCON when
read by MCU) can be polled by the MCU to confirm when a
read/write command is complete.
The following high voltage circuit f
monitored via this interface. Figure 40 shows the top-level
architecture of the high voltage interface and the following
related circuits:
Precision os
Wake-up (WU) pin f
Power supply monitor (PSM)
Low voltage flag (LVF)
LIN operating modes
STI diagnostics
High voltage dia
High voltage attenuator-b
High voltage (HV) temperature monitor
ARM7
MCU
AND
PERIPHERALS
HIGH VOLTAGE
INTERFACE
MMRs
HVCON
HVDAT
PRECISION
OSCILLATOR
HVCFG0[6]
LVF
HVCFG0[2]
LIN
MODES
PSM
HVCFG0[3]
ATTENUATOR
AND
BUFFER
HVCFG1[5]
HVCFG1[7]
HV TEMP
MONITOR
HVCFG1[6]
HVCFG1[3]
HVCFG0
(INDIRECT)
HIGH VOLTAGE
REGISTERS
HVCFG1
HVSTA
HVMON
SERIAL
INTERFACE
CONTROLLER
SERIAL
DATA
SERIAL
CLOCK
HIGH VOLTAGE
INTERRUPT
CONTROLLER
PSM—HVSTA[5]
WU—HVSTA[4]
OVER TEMP—HVSTA[3]
LIN S-SCT—HVSTA[2]
STI S-SCT—HVSTA[1]
WU S-SCT—HVSTA[0]
IRQ3
(IRQEN[16])
HIGH VOLTAGE
DIAGNOSTIC
CONTROLLER
WU DIAGNOSTIC INPUT
HVCFG0[4]
STI DIAGNOSTIC INPUT
P2.6
LIN DIAGNOSTIC INPUT
P2.5
WU DIAGNOSTIC OUTPUT
HVMON[7]
STI DIAGNOSTIC OUTPUT
HVMON[5]
LIN DIAGNOSTIC OUTPUT
P2.4
HVCFG0[5]
HVCFG0[1:0]
WU I/O
CONTROL
HVCFG0[4]
HVCFG1[4]
STI I/O
CONTROL
HVCFG1[3]
07
11
6-
03
6
Figure 40. High Voltage Interface, Top-Level Block Diagram
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