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參數資料
型號: MC68HC05BD3
廠商: Motorola, Inc.
英文描述: 8-Bit Microcontroller Units (MCU).(8位微控制器)
中文描述: 8位微控制器單元(MCU)。(8位微控制器)
文件頁數: 40/112頁
文件大小: 676K
代理商: MC68HC05BD3
MOTOROLA
4-8
MC68HC05BD3
RESETS AND INTERRUPTS
4
Then CPU needs to check the SRW bit and set its MTX bit accordingly. Writing to the M-Bus
Control register clears this bit.
MAL - Arbitration Lost
1 (set)
Lost arbitration in master mode.
0 (clear) –
No arbitration lost.
Refer to Section 7 for detailed description of M-Bus Interface.
4.2.2.4
Multi-Function Timer Interrupts
There are two interrupt sources, TOF and RTIF bits of Multi-Function Timer Control and Status
Register. The interrupt service routine address is specified by the contents of memory location
$3FF4 and $3FF5.
TOF - Timer Overflow
1 (set)
8-bit ripple timer overflow has occurred.
0 (clear) –
No 8-bit ripple timer overflow has occurred.
This bit is set when the 8-bit ripple counter overflows from $FF to $00; a timer overflow interrupt
will occur, if TOFIE is set. TOF is cleared by writing a “0” to the bit.
RTIF - Real Time Interrupt Flag
1 (set)
A real time interrupt has occurred.
0 (clear) –
A real time interrupt has not occurred.
The clock frequency that drives the RTI circuit is E/16384, giving a maximum interrupt period of
8.19ms at a bus clock rate of 2MHz. A CPU interrupt request will be generated if RTIE is set. RTIF
is cleared by writing a “0” to the bit.
Refer to Section 5 for detailed description of Multi-Function Timer.
Address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
MFT Control and Status Register
$0008
TOF
RTIF
TOFIE
RTIE
IRQN
RT1
RT0
0000 0011
TPG
相關PDF資料
PDF描述
MC68HC05BD5 8-Bit Microcontroller Units (MCU).(8位微控制器)
MC68HC705BD3 8-Bit Microcontroller Units (MCU).(8位微控制器)
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MC68HC05C8A Microcontrollers
相關代理商/技術參數
參數描述
MC68HC05BD5 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit
MC68HC05C0CP 制造商:Motorola Inc 功能描述:
MC68HC05C12 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNITS
MC68HC05C12B 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNITS
MC68HC05C12CP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNITS
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