參數(shù)資料
型號: MC68HC05CL48
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 1.802 MHz, MICROCONTROLLER, PQFP112
封裝: TQFP-112
文件頁數(shù): 133/145頁
文件大?。?/td> 673K
代理商: MC68HC05CL48
GENERAL RELEASE SPECIFICATION
June 11, 1997
MOTOROLA
CALLER-ID
MC68HC05CL48
11-4
REV 2.0
11.5
POWER MANAGEMENT
If the Ring Detect module is used, it should be enabled by setting the RDPW bit
before executing the STOP instruction. When the RT signal is below the threshold
(see Figure 11-9) the oscillator circuit is forced on and the Ring Signal is
validated. If the RT rises above the threshold before the Ring Signal is validated
the oscillator will stop and the MCU will stay in the STOP mode. However, if a valid
ring is detected an interrupt is generated provided the Ring Detect Interrupt
Enable bit (RDIE) is set. The interrupt will wake the MCU from the STOP mode
and the clocks to all enabled modules will start. At this time if the CPU is not
required the WAIT mode can be entered.
If the Carrier Detect module is enabled before entering the wait mode by CDPW
bit, it will start processing the incoming data. When a valid carrier is detected an
interrupt is generated if enabled by the CDIE bit. The interrupt will take the CPU
out of the WAIT mode.
Figure 11-5. Power Up Sequence from STOP Mode
CPU STOP MODE
RDPW?
POWER ON
RDIE?
RD INTERRUPT/
YES
CPU WAIT MODE
CDPW?
POWER ON
CDIE?
CD INTERRUPT
YES
WAKE UP CPU
VALID
YES
NO
RING DETECT
START PLL CLOCK
NO
RT?
CARRIER DETECT
相關(guān)PDF資料
PDF描述
MC68HC705CL48 8-BIT, OTPROM, 1.802 MHz, MICROCONTROLLER, PQFP112
MC68HC05CT4FN 8-BIT, MROM, 2.048 MHz, MICROCONTROLLER, PQCC44
MC68HC05CT4FB 8-BIT, MROM, 2.048 MHz, MICROCONTROLLER, PQFP44
MC68HC05E16CB 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56
MC68HC05E16FB 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC05CT4FB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification
MC68HC05CT4FN 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification
MC68HC05D9 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-bit microcomputer with PWM outputs and LED drive
MC68HC05E0 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit
MC68HC05E0FN 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller