參數(shù)資料
型號(hào)： PIC18LF27J53-I/ML
廠商： Microchip Technology
文件頁(yè)數(shù)： 64/71頁(yè)
文件大?。?/td> 0K
描述： IC PIC MCU 128KB FLASH 28QFN
產(chǎn)品培訓(xùn)模塊： 8-bit PIC® Microcontroller Portfolio
標(biāo)準(zhǔn)包裝： 61
系列： PIC® XLP™ 18F
核心處理器： PIC
芯體尺寸： 8-位
速度： 48MHz
連通性： I²C，LIN，SPI，UART/USART，USB
外圍設(shè)備： 欠壓檢測(cè)/復(fù)位，POR，PWM，WDT
輸入/輸出數(shù)： 22
程序存儲(chǔ)器容量： 128KB（64K x 16）
程序存儲(chǔ)器類(lèi)型： 閃存
RAM 容量： 3.8K x 8
電壓 - 電源 (Vcc/Vdd)： 2 V ~ 2.75 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 10x10b/12b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 28-VQFN 裸露焊盤(pán)
包裝： 管件
2010-2012 Microchip Technology Inc.
DS41412F-page 67
PIC18(L)F2X/4XK22
4.7
Reset State of Registers
Some registers are unaffected by a Reset. Their status
is unknown on POR and unchanged by all other
Resets. All other registers are forced to a “Reset state”
depending on the type of Reset that occurred.
Most registers are not affected by a WDT wake-up,
since this is viewed as the resumption of normal
operation. Status bits from the RCON register, RI, TO,
PD, POR and BOR, are set or cleared differently in
different Reset situations, as indicated in Table 4-3.
These bits are used by software to determine the
nature of the Reset.
Table 5-2 describes the Reset states for all of the
Special Function Registers. The table identifies
differences between Power-On Reset (POR)/Brown-
Out Reset (BOR) and all other Resets, (i.e., Master
Clear,
WDT
Resets,
STKFUL,
STKUNF,
etc.).
Additionally, the table identifies register bits that are
changed when the device receives a wake-up from
WDT or other interrupts.
TABLE 4-3:
STATUS BITS, THEIR SIGNIFICANCE AND THE INITIALIZATION CONDITION
FOR RCON REGISTER
Condition
Program
Counter
RCON Register
STKPTR Register
SBOREN
RI
TO
PD
POR BOR
STKFUL
STKUNF
Power-on Reset
0000h
1
111
00
0
RESET
Instruction
0000h
u(2)
0uu
uu
u
Brown-out Reset
0000h
u(2)
111
u0
u
MCLR during Power-Managed
Run Modes
0000h
u(2)
u1u
uu
u
MCLR during Power-Managed
Idle Modes and Sleep Mode
0000h
u(2)
u10
uu
u
WDT Time-out during Full Power
or Power-Managed Run Mode
0000h
u(2)
u0u
uu
u
MCLR during Full Power
Execution
0000h
u(2)
uuu
uu
u
Stack Full Reset (STVREN = 1)
0000h
u(2)
uuu
uu
1
u
Stack Underflow Reset
(STVREN = 1)
0000h
u(2)
uuu
uu
u
1
Stack Underflow Error (not an
actual Reset, STVREN = 0)
0000h
u(2)
uuu
uu
u
1
WDT Time-out during Power-
Managed Idle or Sleep Modes
PC + 2
u(2)
u00
uu
u
Interrupt Exit from Power-
Managed Modes
PC + 2(1)
u(2)
uu0
uu
u
Legend: u = unchanged
Note 1:
When the wake-up is due to an interrupt and the GIEH or GIEL bits are set, the PC is loaded with the
interrupt vector (008h or 0018h).
2:
Reset state is ‘1’ for SBOREN and unchanged for all other Resets when software BOR is enabled
(BOREN<1:0> Configuration bits = 01). Otherwise, the Reset state is ‘0’.
TABLE 4-4:
REGISTERS ASSOCIATED WITH RESETS
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register
on Page
RCON
IPEN
SBOREN
—RI
TO
PD
POR
BOR
STKPTR
STKFUL
STKUNF
—
STKPTR<4:0>
Legend: — = unimplemented locations, read as ‘0’. Shaded bits are not used for Resets.
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PIC18LF27J53T-I/SO 功能描述:8位微控制器 -MCU USB 128KB Flash 4KB RAM 12 MIPS 12b ADC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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PIC18LF320-I/S0 制造商:Microchip Technology Inc 功能描述:
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