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參數(shù)資料
型號： MC68HCP11A1CFN3
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： HCMOS Single-Chip Microcontroller
中文描述： 8-BIT, EEPROM, 3 MHz, MICROCONTROLLER, PQCC52
封裝： PLASTIC, LCC-52
文件頁數(shù)： 55/158頁
文件大小： 776K
代理商： MC68HCP11A1CFN3
MC68HC11A8
TECHNICAL DATA
SERIAL COMMUNICATIONS INTERFACE
MOTOROLA
5-11
5
NF — Noise Flag
The noise flag bit is set if there is noise on any of the received bits, including the start
and stop bits. The NF bit is not set until the RDRF flag is set. The NF bit is cleared
when the SCSR is read (with NF set), followed by a read of the SCDR.
FE — Framing Error
The framing error bit is set when no stop bit was detected in the received data charac-
ter. The FE bit is set at the same time as the RDRF is set. If the byte received causes
both framing and overrun errors, the processor will only recognize the overrun error.
The framing error flag inhibits further transfer of data into the SCDR until it is cleared.
The FE bit is cleared when the SCSR is read (with FE equal to one) followed by a read
of the SCDR.
Bit 0 — Not Implemented
This bit always reads zero.
5.8.5 Baud Rate Register (BAUD)
The baud rate register selects the different baud rates which may be used as the rate
control for the transmitter and receiver. The SCP[0:1] bits function as a prescaler for
the SCR[0:2] bits. Together, these five bits provide multiple baud rate combinations for
a given crystal frequency.
TCLR — Clear Baud Rate Counters (Test)
This bit is used to clear the baud rate counter chain during factory testing. TCLR is
zero and cannot be set while in normal operating modes.
SCP1 and SCP0 — SCI Baud Rate Prescaler Selects
The E clock is divided by the factors shown in
Table 5-1
. This prescaled output pro-
vides an input to a divider which is controlled by the SCR2-SCR0 bits.
SCR2, SCR1, and SCR0 — SCI Baud Rate Selects
These three bits select the baud rates for both the transmitter and the receiver. The
prescaler output described above is further divided by the factors shown in
Table 5-2
.
7
6
0
0
5
4
3
2
1
0
$
1
02B
RESET
TCLR
0
SCP1
0
SCP0
0
RCKB
0
SCR2
U
SCR1
U
SCR0
U
BAUD
Table 5-1 First Prescaler Stage
SCP1
0
0
1
1
SCP0
0
1
0
1
Internal Processor Clock Divided By
1
3
4
13
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HCP11A1FN 制造商:MOTORALA 功能描述:
MC68HCP11E0CP2 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HCP11E0FN 功能描述:MICROCONTROLLER MCU 8ADC 3MHC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC11 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設(shè)備:POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):21 程序存儲器容量:40KB（20K x 16） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
MC68HCP11E0FNE 功能描述:8位微控制器 -MCU 8B MCU 512RAM COP A/D 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
MC68HCP11E1CFNE2 功能描述:8位微控制器 -MCU 8B MCU 512 BYTES RAM 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
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