參數(shù)資料
型號： MC68L11K4FN1
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT MICROCONTROLLER
中文描述： 8-BIT, MROM, 1 MHz, MICROCONTROLLER, PQCC84
封裝： PLASTIC, LCC-84
文件頁數(shù)： 25/80頁
文件大?。?/td> 420K
代理商： MC68L11K4FN1
M68HC11 K Series
MC6HC11KTS/D
MOTOROLA
25
ROMAD —ROM/EPROM Mapping Control
In single-chip mode ROMAD is forced to one out of reset.
0 = ROM/EPROM located at $2000–$7FFF
1 = ROM/EPROM located at $A000–$FFFF
Bit 6 —Not implemented
Always reads one
CLKX —XOUT Clock Enable
0 = XOUT pin disabled
1 = Buffered XTAL signal (four times E frequency) driven out on the XOUT pin
PAREN —Pull-Up Assignment Register Enable
0 = Pull-ups always disabled regardless of state of bits in PPAR
1 = Pull-ups either enabled or disabled through PPAR
NOSEC —Security Disable
NOSEC is invalid unless the security mask option is specified before the MCU is manufactured. If se-
curity mask option is omitted NOSEC always reads one. Refer to
3.6 Security Feature
.
0 = Security enabled
1 = Security disabled
NOCOP —COP System Disable
Resets to programmed value
0 = COP enabled (forces reset on timeout)
1 = COP disabled (does not force reset on timeout)
ROMON —ROM/EPROM Enable
In single-chip mode, ROMON is forced to one out of reset. In special test mode, ROMON is forced to
zero out of reset.
0 = ROM/EPROM removed from memory map
1 = ROM/EPROM present in memory map
EEON —EEPROM Enable
0 = EEPROM disabled from memory map
1 = EEPROM present in memory map with location depending on value specified in EE[3:0] in INIT2
3.6 Security Feature
The security feature protects memory contents from unauthorized access. Although many devices in
the M68HC11 family support the security feature, an enhancement has been added to the MC68S11K4
that protects the contents of EPROM/OTPROM.
The security feature affects how the MCU behaves in certain modes. When the optional security feature
has been specified prior to manufacture and enabled via the NOSEC bit in CONFIG, the MCU is re-
stricted to operation in single-chip modes only. When the NOSEC bit equals zero, the MCU ignores the
state of the MODA pin during reset. This allows the MCU to be operated in single-chip and bootstrap
modes only. These modes of operation do not allow external visibility of the internal address and data
buses. Although the security feature can easily be disabled when in bootstrap mode, the bootloader
firmware residing in bootstrap ROM checks to see if the NOSEC bit is clear. If NOSEC is clear (security
enabled), the bootloader program performs the following:
CONFIG
—System Configuration Register
$003F
Bit 7
6
5
4
3
2
1
Bit 0
ROMAD
1
CLKX
PAREN
NOSEC
NOCOP
ROMON
EEON
RESET:
—
1
—
—
—
—
—
—
相關(guān)PDF資料
PDF描述
MC68L11K4FN3 8-BIT MICROCONTROLLER
MC68L11K4FU1 8-BIT MICROCONTROLLER
MC68L11K4FU3 8-BIT MICROCONTROLLER
MC68HC11K1VFN2 8-BIT MICROCONTROLLER
MC68HC11K1VFN3 8-BIT MICROCONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68L711E9FN2 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68L711E9FNE2 功能描述:8位微控制器 -MCU 8B MCU LO VOLTAGE 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
MC68L711E9FU2 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述:
MC68L711M2CFU 制造商:Freescale Semiconductor 功能描述:
MC68LC040FE20A 功能描述:微處理器 - MPU 32B W/ CACHE MMU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*