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參數資料
型號: MC68HC705BD3
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: MC68HC705BD3
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
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相關代理商/技術參數
參數描述
MC68HC705BD3P 制造商:Motorola 功能描述:MOTOROLA NXC4C
MC68HC705BD7P1 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HC705C4ACP 制造商:Freescale Semiconductor 功能描述:
MC68HC705C8AB 功能描述:IC MCU 8K OTP 2.1MHZ 42-SDIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 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: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
MC68HC705C8ACB 制造商:Rochester Electronics LLC 功能描述:HCO5 CORE + 8K RAM + EPR - Bulk
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