參數(shù)資料
型號: MC68HC11F1CFN4
廠商: Freescale Semiconductor
文件頁數(shù): 154/158頁
文件大小: 0K
描述: IC MCU 512 EEPROM 4MHZ 68-PLCC
標(biāo)準(zhǔn)包裝: 18
系列: HC11
核心處理器: HC11
芯體尺寸: 8-位
速度: 4MHz
連通性: SCI,SPI
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 30
程序存儲(chǔ)器類型: ROMless
EEPROM 大?。?/td> 512 x 8
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 4.75 V ~ 5.25 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x8b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 68-LCC(J 形引線)
包裝: 管件
SERIAL COMMUNICATIONS INTERFACE
TECHNICAL DATA
7-9
RCKB — SCI Baud Rate Clock Check (Test)
SCR[2:0] — SCI Baud Rate Selects
Selects receiver and transmitter bit rate based on output from baud rate prescaler
stage. Refer to the SCI baud rate generator block diagram.
The prescaler bits, SCP[2:0], determine the highest baud rate, and the SCR[2:0] bits
select an additional binary submultiple (
≥1, ≥2, ≥4, through ≥128) of this highest baud
rate. The result of these two dividers in series is the 16X receiver baud rate clock. The
SCR[2:0] bits are not affected by reset and can be changed at any time, although they
should not be changed when any SCI transfer is in progress.
Figure 7-3 and Figure 7-4 illustrate the SCI baud rate timing chain. The prescaler se-
lect bits determine the highest baud rate. The rate select bits determine additional di-
vide by two stages to arrive at the receiver timing (RT) clock rate. The baud rate clock
is the result of dividing the RT clock by 16.
Table 7-2 Baud Rate Selection
Divide
Prescaler
Highest Baud Rate
(Prescaler Output from Previous Table)
SCR[2:0]
By
4800
19200
76800
312500
0 0 0
1
4800
19200
76800
312500
0 0 1
2
2400
9600
38400
156250
0 1 0
4
1200
4800
19200
78125
0 1 1
8
600
2400
9600
39063
1 0 0
16
300
1200
4800
19531
1 0 1
32
150
600
2400
9766
1 1 0
64
75
300
1200
4883
1 1 1
128
150
600
2441
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相關(guān)PDF資料
PDF描述
MC68HC11F1CPU4 IC MCU 512 EEPROM 4MHZ 80-LQFP
MC68HRC908JK3CDW IC MCU 4K FLASH 8MHZ SO20
MC68HC711K4CFU4 IC MCU 24K 4MHZ EEPROM 80-QFP
MC68HC11K1CFN4 IC MCU 640 EEPROM 4MHZ 84-PLCC
MC68332ACFC20B1 IC MCU 32BIT 20MHZ 132-PQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC11F1CFN4R2 功能描述:IC MCU 1K RAM 4MHZ 68-PLCC 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(chǔ)器容量:40KB(20K x 16) 程序存儲(chǔ)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
MC68HC11F1CFN5 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller
MC68HC11F1CFU 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:ROM-based high-performance microcontrollers
MC68HC11F1CFU1 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:ROM-based high-performance microcontrollers
MC68HC11F1CFU3 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:ROM-based high-performance microcontrollers