參數(shù)資料
型號: PIC18LF96J65-I/PT
廠商: Microchip Technology
文件頁數(shù): 92/131頁
文件大小: 0K
描述: IC PIC MCU FLASH 48KX16 100TQFP
標(biāo)準(zhǔn)包裝: 90
系列: PIC® 18F
核心處理器: PIC
芯體尺寸: 8-位
速度: 41.667MHz
連通性: EBI/EMI,以太網(wǎng),I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 70
程序存儲器容量: 96KB(48K x 16)
程序存儲器類型: 閃存
RAM 容量: 3808 x 8
電壓 - 電源 (Vcc/Vdd): 2 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 16x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 100-TQFP
包裝: 托盤
2011 Microchip Technology Inc.
DS39762F-page 63
PIC18F97J60 FAMILY
5.0
RESET
The PIC18F97J60 family of devices differentiates
between various kinds of Reset:
a)
MCLR Reset during normal operation
b)
MCLR Reset during power-managed modes
c)
Power-on Reset (POR)
d)
Brown-out Reset (BOR)
e)
Configuration Mismatch (CM)
f)
RESET
Instruction
g)
Stack Full Reset
h)
Stack Underflow Reset
i)
Watchdog Timer (WDT) Reset during execution
This section discusses Resets generated by hard
events (MCLR), power events (POR and BOR) and
Configuration Mismatches (CM). It also covers the
operation of the various start-up timers. Stack Reset
events are covered in Section 6.1.6.4 “Stack Full and
. WDT Resets are covered in
A simplified block diagram of the on-chip Reset circuit
is shown in Figure 5-1.
5.1
RCON Register
Device Reset events are tracked through the RCON
register (Register 5-1). The lower six bits of the register
indicate that a specific Reset event has occurred. In
most cases, these bits can only be set by the event and
must be cleared by the application after the event. The
state of these flag bits, taken together, can be read to
indicate the type of Reset that just occurred. This is
described in more detail in Section 5.7 “Reset State
.
The RCON register also has a control bit for setting
interrupt priority (IPEN). Interrupt priority is discussed
FIGURE 5-1:
SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT
External Reset
MCLR
VDD
WDT
Time-out
VDD Rise
Detect
PWRT
INTRC
POR Pulse
Chip_Reset
Brown-out
Reset(1)
RESET
Instruction
Stack
Pointer
Stack Full/Underflow Reset
Sleep
( )_IDLE
32
s
Note 1:
The ENVREG pin must be tied high to enable Brown-out Reset. The Brown-out Reset is provided by the on-chip
voltage regulator when there is insufficient source voltage to maintain regulation.
PWRT
11-Bit Ripple Counter
66 ms
S
R
Q
Configuration Word Mismatch
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