參數(shù)資料
型號： MC68HC908JL8CSP
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP32
封裝： SDIP-32
文件頁數(shù)： 35/56頁
文件大小： 648K
代理商： MC68HC908JL8CSP
MC68HC908JL8SM/D
MC68HC908JL8MC68HC908JK8
SCI Status
Register 2
BKF — Break Flag Bit
This clearable, read-only bit is set when the SCI detects a break character
on the RxD pin. In SCS1, the FE and SCRF bits are also set. In 9-bit
character transmissions, the R8 bit in SCC3 is cleared. BKF does not
generate a CPU interrupt request. Clear BKF by reading SCS2 with BKF set
and then reading the SCDR. Once cleared, BKF can become set again only
after logic 1s again appear on the RxD pin followed by another break
character. Reset clears the BKF bit.
1 = Break character detected
RPF — Reception in Progress Flag Bit
This read-only bit is set when the receiver detects a logic 0 during the RT1
time period of the start bit search. RPF does not generate an interrupt
request. RPF is reset after the receiver detects false start bits (usually from
noise or a baud rate mismatch) or when the receiver detects an idle
character. Polling RPF before disabling the SCI module or entering stop
mode can show whether a reception is in progress.
1 = Reception in progress
SCI Data Register
R7/T7–R0/T0 — Receive/Transmit Data Bits
Reading the SCDR accesses the read-only received data bits, R[7:0].
Writing to the SCDR writes the data to be transmitted, T[7:0]. Reset has no
effect on the SCDR.
NOTE:
Do not use read/modify/write instructions on the SCI data register.
SCI Baud Rate
Register
$0017
Bit 7
654321
Bit 0
BKF
RPF
Reset:
00000000
Figure 32. SCI Status Register 2 (SCS2)
$0018
Bit 7
654321
Bit 0
R7/T7
R6/T6
R5/T5
R4/T4
R3/T3
R2/T2
R1/T1
R0/T0
Reset:
Unaffected by reset
Figure 33. SCI Data Register (SCDR)
$0019
Bit 7
654321
Bit 0
SCP1
SCP0
R
SCR2
SCR1
SCR0
Reset:
00000000
Figure 34. SCI Baud Rate Register (SCBR)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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相關PDF資料
PDF描述
MC68HC908JL8MFA 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32
MC68HC908JK8CP 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP20
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相關代理商/技術參數(shù)
參數(shù)描述
MC68HC908JL8CSPE 功能描述:8位微控制器 -MCU MCU 8K FLASH 8 BIT RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據 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 安裝風格:SMD/SMT
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MC68HC908KX2CDW 功能描述:IC MCU 2K FLASH 8MHZ 16-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC08 標準包裝: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)據轉換器:A/D 6x12b 振蕩器型:內部 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
MC68HC908KX2CP 功能描述:IC MCU 2K FLASH 8MHZ SCI 16-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC08 標準包裝: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)據轉換器:A/D 6x12b 振蕩器型:內部 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
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