参数资料
型号: MC68HC05RC8P
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP28
封装: PLASTIC, DIP-28
文件页数: 99/122页
文件大小: 445K
代理商: MC68HC05RC8P
Carrier Modulator Transmitter (CMT)
General Release Specification
MC68HC05RC16 — Rev. 3.0
78
Carrier Modulator Transmitter (CMT)
MOTOROLA
The mark and space time equations for FSK mode are:
Where fcg is the frequency output from the carrier generator, setting the
DIV2 bit in the MCSR will double mark and space times.
9.5.3 Extended Space Operation
In either time or FSK mode, the space period can be made longer than
the maximum possible value of SBUFF. Setting the EXSPC bit in the
MCSR will force the modulator to treat the next modulation period
(beginning with the next load of MBUFF/SBUFF) as a space period
equal in length to the mark and space counts combined. Subsequent
modulation periods will consist entirely of these extended space periods
with no mark periods. Clearing EXSPC will return the modulator to
standard operation at the beginning of the next modulation period. To
calculate the length of an extended space in time mode, use the
equation:
Where:
the subscripts 1, 2, ... n refer to the modulation periods that elapsed
while the EXSPC bit was set.
Similarly, to calculate the length of an extended space in FSK mode, use
the equation:
tmark
MBUFF
1
+
fcg
-------------------------------
s
sec
=
tspace
SBUFF
fcg
---------------------s
sec
=
((SBUFF1)+(MBUFF2+1+SBUFF2) +... (MBUFFn+1+SBUFFn)) x 8
fosc
texspace =
secs
((SBUFF1)+(MBUFF2+1+SBUFF2)+... (MBUFFn+1+SBUFFn))
fcg
texspace =
secs
相关PDF资料
PDF描述
MC68HC908QT4VP 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP8
MC68HC908JL3ADW 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO28
MC68HC908JL3MFA 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP48
MC68HLC908JL3CP 8-BIT, FLASH, MICROCONTROLLER, PDIP28
MC68360ZP25VL 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PBGA357
相关代理商/技术参数
参数描述
MC68HC05SC24 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Secure 8-bit microcomputer with EEPROM
MC68HC05SR3 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcontroller Units
MC68HC05SU3A 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Fully static chip design featuring the industry standard 8-bit M68HC05 core
MC68HC05T16 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit
MC68HC05V12 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontreller Unit