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ST72344K2 датащи(PDF) 166 Page - STMicroelectronics

номер детали ST72344K2
подробное описание детали  SCI asynchronous serial interface
PDF  247 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72344K2 датащи(HTML) 166 Page - STMicroelectronics

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On-chip peripherals
ST72344xx, ST2345xx
166/247
Doc ID 12321 Rev 6
I2C own address register (OAR2)
Reset value: 0100 0000 (40h)
Bit 7:6 = FR[1:0] Frequency bits.
These bits are set by software only when the interface is disabled (PE=0). To configure
the interface to I2C specified delays select the value corresponding to the
microcontroller frequency fCPU.
Bits 5:3 = Reserved
Bits 2:1 = ADD[9:8] Interface address.
These are the most significant bits of the I2C bus address of the interface (10-bit mode
only). They are not cleared when the interface is disabled (PE=0).
Bit 0 = Reserved.
7
0
FR1
FR0
0
0
0
ADD9
ADD8
0
Read / Write
Table 66.
FR[1:0] configuration
fCPU
FR1
FR0
< 6 MHz
0
0
6 to 8 MHz
0
1
Table 67.
I2C register map and reset values
Address
(Hex.)
Register
label
7
6
5
4
321
0
0058h
I2CCR
Reset value
0
0
PE
0
ENGC
0
START
0
ACK
0
STOP
0
ITE
0
0059h
I2CSR1
Reset value
EVF
0
ADD10
0
TRA
0
BUSY
0
BTF
0
ADSL
0
M/SL
0
SB
0
005Ah
I2CSR2
Reset value
0
0
0
AF
0
STOPF
0
ARLO
0
BERR
0
GCAL
0
005Bh
I2CCCR
Reset value
FM/SM
0
CC6
0
CC5
0
CC4
0
CC3
0
CC2
0
CC1
0
CC0
0
005Ch
I2COAR1
Reset value
ADD7
0
ADD6
0
ADD5
0
ADD4
0
ADD3
0
ADD2
0
ADD1
0
ADD0
0
005Dh
I2COAR2
Reset value
FR1
0
FR0
10
0
0
ADD9
0
ADD8
00
005Eh
I2CDR
Reset value
MSB
0
0
0
0
000
LSB
0



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