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ST72334J2TA/XXX датащи(PDF) 49 Page - STMicroelectronics

номер детали ST72334J2TA/XXX
подробное описание детали  8-bit MCU for automotive with single voltage Flash/ROM memory, ADC, 16-bit timers, SPI, SCI interfaces
PDF  150 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72334J2TA/XXX датащи(HTML) 49 Page - STMicroelectronics

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MISCELLANEOUS REGISTERS (Cont’d)
MISCELLANEOUS REGISTER 2 (MISCR2)
Read/Write
Reset Value: 0000 0000 (00h)
Bit 7:6 = Reserved Must always be cleared
Bit 5:4 = 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 con-
sumption.
Bit 3:2 = Reserved Must always be cleared
Bit 1 = SSM SS mode selection
It is set and cleared by software.
0: Normal mode - SS uses information coming
from the SS pin of the SPI.
1: I/O mode, the SPI uses the information stored
into bit SSI.
Bit 0 = SSI SS internal mode
This bit replaces pin SS of the SPI when bit SSM is
set to 1. (see SPI description). It is set and cleared
by software.
Table 11. Miscellaneous Register Map and Reset Values
7
0
-
-
BC1
BC0
-
-
SSM
SSI
Beep mode with fOSC=16MHz
BC1 BC0
Off
0
0
~2 kHz
Output
Beep signal
~50% duty cycle
0
1
~1 kHz
1
0
~500 Hz
1
1
Address
(Hex.)
Register
Label
7
6
5
4
3
2
1
0
0020h
MISCR1
Reset Value
IS11
0
IS10
0
MCO
0
IS21
0
IS20
0
CP1
0
CP0
0
SMS
0
0040h
MISCR2
Reset Value
0
0
BC1
0
BC0
0
0
0
SSM
0
SSI
0



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