參數(shù)資料
型號(hào)： AT89C5131A-RDTIL
廠商： Atmel
文件頁(yè)數(shù)： 66/185頁(yè)
文件大小： 0K
描述： IC 8051 MCU FLASH 32K USB 64VQFP
標(biāo)準(zhǔn)包裝： 160
系列： AT89C513x
核心處理器： C52X2
芯體尺寸： 8-位
速度： 48MHz
連通性： I²C，SPI，UART/USART，USB
外圍設(shè)備： LED，POR，PWM，WDT
輸入/輸出數(shù)： 34
程序存儲(chǔ)器容量： 32KB（32K x 8）
程序存儲(chǔ)器類型： 閃存
EEPROM 大?。?/td> 4K x 8
RAM 容量： 1.25K x 8
電壓 - 電源 (Vcc/Vdd)： 3 V ~ 3.6 V
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 64-LQFP
包裝： 托盤(pán)
配用： AT89STK-10-ND - KIT EVAL APPL MASS STORAGE
AT89STK-05-ND - KIT STARTER FOR AT89C5131
其它名稱： AT89C5131-RDTIL-ND
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dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/X04
DS70318F-page 158
2008-2012 Microchip Technology Inc.
10.6.2.3
Virtual Pins
dsPIC33FJ06GS101/X02
and
dsPIC33FJ16GSX02/X04 devices support four virtual
RPn pins (RP32, RP33, RP34 and RP35), which are
identical in functionality to all other RPn pins, with the
exception of pinouts. These four pins are internal to the
devices and are not connected to a physical device pin.
These pins provide a simple way for inter-peripheral
connection without utilizing a physical pin. For example,
the output of the analog comparator can be connected to
RP32 and the PWM Fault input can be configured for
RP32 as well. This configuration allows the analog
comparator to trigger PWM Faults without the use of an
actual physical pin on the device.
10.6.3
CONTROLLING CONFIGURATION
CHANGES
Because peripheral remapping can be changed during
run time, some restrictions on peripheral remapping
are
needed
to
prevent
accidental
configuration
changes. dsPIC33F devices include three features to
prevent alterations to the peripheral map:
Control register lock sequence
Continuous state monitoring
Configuration bit pin select lock
10.6.3.1
Control Register Lock
Under normal operation, writes to the RPINRx and
RPORx registers are not allowed. Attempted writes
appear to execute normally, but the contents of the
registers
remain
unchanged.
To
change
these
registers, they must be unlocked in hardware. The
register
lock
is
controlled
by
the
IOLOCK
bit
(OSCCON<6>). Setting IOLOCK prevents writes to the
control registers; clearing IOLOCK allows writes.
To set or clear IOLOCK, a specific command sequence
must be executed:
1.
Write 0x46 to OSCCON<7:0>.
2.
Write 0x57 to OSCCON<7:0>.
3.
Clear (or set) IOLOCK as a single operation.
Unlike the similar sequence with the oscillator’s LOCK
bit, IOLOCK remains in one state until changed. This
allows all of the peripheral pin selects to be configured
with a single unlock sequence followed by an update to
all control registers, then locked with a second lock
sequence.
10.6.3.2
Continuous State Monitoring
In addition to being protected from direct writes, the
contents of the RPINRx and RPORx registers are
constantly monitored in hardware by shadow registers.
If an unexpected change in any of the registers occurs
(such as cell disturbances caused by ESD or other
external events), a Configuration Mismatch Reset will
be triggered.
10.6.3.3
Configuration Bit Pin Select Lock
As an additional level of safety, the device can be
configured to prevent many write session to the
RPINRx
and
RPORx
registers.
The
IOL1WAY
(FOSC<5>) Configuration bit blocks the IOLOCK bit
from being cleared after it has been set once. If
IOLOCK remains set, the register unlock procedure will
not execute and the Peripheral Pin Select Control
registers cannot be written to. The only way to clear the
bit and re-enable peripheral remapping is to perform a
device Reset.
In the default (unprogrammed) state, IOL1WAY is set,
restricting users to one write session. Programming
IOL1WAY allows user applications unlimited access
(with the proper use of the unlock sequence) to the
Peripheral Pin Select registers.
Note:
MPLAB
C30
provides
built-in
C
language functions for unlocking the
OSCCON register:
__builtin_write_OSCCONL(value)
__builtin_write_OSCCONH(value)
See the MPLAB C30 Help files for more
information.
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參數(shù)描述
AT89C5131A-RDTIM 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Flash Microcontroller with Full Speed USB Device
AT89C5131A-RDTUL 功能描述:8位微控制器 -MCU 32K Flash 3V USB 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
AT89C5131A-RDTUM 功能描述:8位微控制器 -MCU C5130A 32K Flash 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
AT89C5131A-RDTUM 制造商:Atmel Corporation 功能描述:IC 8BIT MCU C51/C251 48MHZ 64-VQFP
AT89C5131A-S3SIL 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Flash Microcontroller with Full Speed USB Device
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