参数资料
型号: DSPIC33FJ16GP304T-I/PT
厂商: Microchip Technology
文件页数: 142/176页
文件大小: 0K
描述: IC DSPIC MCU/DSP 16K 44TQFP
产品培训模块: Asynchronous Stimulus
标准包装: 1,200
系列: dsPIC™ 33F
核心处理器: dsPIC
芯体尺寸: 16-位
速度: 40 MIP
连通性: I²C,IrDA,LIN,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 35
程序存储器容量: 16KB(16K x 8)
程序存储器类型: 闪存
RAM 容量: 2K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 3.6 V
数据转换器: A/D 13x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 44-TQFP
包装: 带卷 (TR)
配用: DV164033-ND - KIT START EXPLORER 16 MPLAB ICD2
DM240001-ND - BOARD DEMO PIC24/DSPIC33/PIC32
其它名称: DSPIC33FJ16GP304T-I/PTTR
dsPIC33FJ32GP202/204 and dsPIC33FJ16GP304
DS70290J-page 68
2007-2011 Microchip Technology Inc.
FIGURE 6-3:
BROWN-OUT SITUATIONS
6.5
External Reset (EXTR)
The external Reset is generated by driving the MCLR
pin low. The MCLR pin is a Schmitt trigger input with an
additional glitch filter. Reset pulses that are longer than
the minimum pulse-width will generate a Reset. Refer
minimum pulse-width specifications. The External
Reset (MCLR) Pin (EXTR) bit in the Reset Control
(RCON) register is set to indicate the MCLR Reset.
6.5.1
EXTERNAL SUPERVISORY CIRCUIT
Many systems have external supervisory circuits that
generate reset signals to Reset multiple devices in the
system. This external Reset signal can be directly
connected to the MCLR pin to Reset the device when
the rest of system is Reset.
6.5.2
INTERNAL SUPERVISORY CIRCUIT
When using the internal power supervisory circuit to
Reset the device, the external reset pin (MCLR) should
be tied directly or resistively to VDD. In this case, the
MCLR pin will not be used to generate a Reset. The
external reset pin (MCLR) does not have an internal
pull-up and must not be left unconnected.
6.6
Software RESET Instruction (SWR)
Whenever the RESET instruction is executed, the
device will assert SYSRST, placing the device in a
special Reset state. This Reset state will not
re-initialize the clock. The clock source in effect prior to
the RESET instruction will remain. SYSRST is released
at the next instruction cycle, and the reset vector fetch
will commence.
The Software Reset (Instruction) Flag bit (SWR) in the
Reset Control register (RCON<6>) is set to indicate
the software Reset.
6.7
Watchdog Time-out Reset (WDTO)
Whenever a Watchdog time-out occurs, the device will
asynchronously assert SYSRST. The clock source will
remain unchanged. A WDT time-out during Sleep or
Idle mode will wake-up the processor, but will not reset
the processor.
The Watchdog Timer Time-out Flag (WDTO) bit in the
Reset Control register (RCON<4>) is set to indicate
the
Watchdog
Reset.
Refer
to
“Watchdog Timer (WDT)” for more information on
Watchdog Reset.
6.8
Trap Conflict Reset
If a lower-priority hard trap occurs while a
higher-priority trap is being processed, a hard trap
conflict Reset occurs. The hard traps include
exceptions of priority level 13 through level 15,
inclusive. The address error (level 13) and oscillator
error (level 14) traps fall into this category.
The Trap Reset Flag bit (TRAPR) in the Reset Control
register (RCON<15>) is set to indicate the Trap Conflict
more information on trap conflict Resets.
VDD
SYSRST
VBOR
VDD
SYSRST
VBOR
VDD
SYSRST
VBOR
TBOR + TPWRT
VDD dips before PWRT expires
TBOR + TPWRT
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