參數(shù)資料
型號: MC68HC705G1FU
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP64
封裝: QFP-64
文件頁數(shù): 72/124頁
文件大?。?/td> 732K
代理商: MC68HC705G1FU
MC68HC05G1
MOTOROLA
6-5
CLOCKS
6
6.2.3
RTC Status Register
There are three interrupts associated with the RTC, their ags are in the RTC Status register
($1C), and their respective enable bits are the RTC Control register ($1D).
RTCF
1 (set)
Indicates once a day interrupt has occurred. After serving this
interrupt, it is the user’s responsibility to clear this bit, otherwise the
CPU will keep on serving this once a day interrupt when a new RTC
interrupt occurs (even there is no once a day interrupt occurs).
0 (clear) –
Indicates once a day interrupt has not occurred.
ALF
1 (set)
Indicates alarm interrupt has occurred. After serving this interrupt, it
is the user’s responsibility to clear this bit, otherwise the CPU will
keep on serving this alarm interrupt when a new RTC interrupt
occurs (even there is no alarm interrupt occurs).
0 (clear) –
Indicates alarm interrupt has not occurred.
SECF
1 (set)
Indicates once a second interrupt has occurred. After serving this
interrupt, it is responsibility to clear this bit, otherwise the CPU will
keep on serving this once a second interrupt when a new RTC
interrupt occurs (even there is no once a second interrupt occurs).
0 (clear) –
Indicates once a second interrupt has not occurred.
6.2.4
RTC Control Register
RTCE
1 (set)
Real time clock once a day interrupt enable
0 (clear) –
Real time clock once a day interrupt disable
Address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on Reset
$1C
SECF
ALF
RTCF
---- -000
Address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on Reset
$1D
SECE
ALE
RTCE
---- -000
TPG
47
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PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705J1A 制造商:Freescale Semiconductor 功能描述:
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MC68HC705J2CDW 制造商:Motorola Inc 功能描述: 制造商:Motorola Inc 功能描述:MicroController, 8-Bit, 20 Pin, Plastic, SOP