參數(shù)資料
型號(hào): ST72F324B
廠商: 意法半導(dǎo)體
英文描述: 5V Range 8-Bit MCU With 8 TO 32K FLASH/ROM, 10-Bit ADC, 4 Timers, SPI, SCI Interface(具有ICP,IAP,Nested Interrupt,TLI,ROP的8位MCU)
中文描述: 5V范圍內(nèi)的8位8到32K閃存/ ROM,10位ADC,4個(gè)計(jì)時(shí)器,SPI和SCI接口(具有比較方案,國際檢察官聯(lián)合會(huì),嵌套中斷,中華語文研習(xí)所,人事登記的8位微控制器)
文件頁數(shù): 58/167頁
文件大?。?/td> 1641K
代理商: ST72F324B
ST72324B
58/167
1
MAIN CLOCK CONTROLLER WITH REAL TIME CLOCK
(Cont’d)
Bit 0 =
OIF
Oscillator interrupt flag
This bit is set by hardware and cleared by software
reading the MCCSR register. It indicates when set
that the main oscillator has reached the selected
elapsed time (TB1:0).
0: Timeout not reached
1: Timeout reached
CAUTION
: The BRES and BSET instructions
must not be used on the MCCSR register to avoid
unintentionally clearing the OIF bit.
MCC BEEP CONTROL REGISTER (MCCBCR)
Read/Write
Reset Value: 0000 0000 (00h)
Bit 7:2 = Reserved, must be kept cleared.
Bit 1:0 =
BC[1:0]
Beep control
These 2 bits select the PF1 pin beep capability.
The beep output signal is available in ACTIVE-
HALT mode but has to be disabled to reduce the
consumption.
Table 15. Main Clock Controller Register Map and Reset Values
7
0
0
0
0
0
0
0
BC1
BC0
BC1
BC0
Beep mode with f
OSC2
=8MHz
0
0
Off
0
1
~2-KHz
Output
Beep signal
~50% duty cycle
1
0
~1-KHz
1
1
~500-Hz
Address
(Hex.)
Register
Label
7
6
5
4
3
2
1
0
002Bh
SICSR
Reset Value
MCCSR
Reset Value
MCCBCR
Reset Value
0
AVDIE
0
CP1
0
AVDF
0
CP0
0
LVDRF
x
SMS
0
0
0
0
WDGRF
x
OIF
0
BC0
0
002Ch
MCO
0
TB1
0
TB0
0
OIE
0
BC1
0
002Dh
0
0
0
0
0
0
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