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TMP86CS49FG 데이터시트(PDF) 211 Page - Toshiba Semiconductor

부품명 TMP86CS49FG
상세설명  8 Bit Microcontroller
PDF  252 Pages
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제조업체  TOSHIBA [Toshiba Semiconductor]
홈페이지  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TMP86CS49FG 데이터시트(HTML) 211 Page - Toshiba Semiconductor

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Page 197
TMP86CS49FG
16.5 I2C Bus Control
The following registers are used to control the serial bus interface and monitor the operation status of the I2C bus.
Note 1: fc: High-frequency clock [Hz], *: Don't care
Note 2: SBICRA cannot be used with any of read-modify-write instructions such as bit manipulation, etc.
Note 3: Do not set SCK as the frequency that is over 100 kHz.
Note 1: For writing transmitted data, start from the MSB (Bit7).
Note 2: The data which was written into SBIDBR can not be read, since a write data buffer and a read buffer are independent in
SBIDBR. Therefore, SBIDBR cannot be used with any of read-modify-write instructions such as bit manipulation, etc.
Note 3: *: Don't care
Serial Bus Interface Control Register A
SBICRA
(0F90H)
7
6
5
43210
BC
ACK
SCK
(Initial value: 0000 *000)
BC
Number of transferred bits
BC
ACK = 0
ACK = 1
Write
only
Number of
Clock
Bits
Number of
Clock
Bits
000:
8
8
9
8
001:
1
1
2
1
010:
2
2
3
2
011:
3
3
4
3
100:
4
4
5
4
101:
5
5
6
5
110:
6
676
111:
7
7
8
7
ACK
Acknowledgement mode
specification
ACK
Master mode
Slave mode
R/W
0:
Not generate a clock pulse for
an acknowledgement.
Not count a clock pulse for
an acknowledgement.
1:
Generate a clock pulse for an
acknowledgement.
Count a clock pulse for an
acknowledgement.
SCK
Serial clock (fscl) selection
(Output on SCL pin)
[fscl = 1/(2n+1/fc + 8/fc)]
SCK
n
At fc = 16 MHz
At fc = 8 MHz
At fc = 4 MHz
Write
only
000:
4
Reserved
Reserved
100.0 kHz
001:
5
Reserved
Reserved
55.6 kHz
010:
6
Reserved
58.8 kHz
29.4 kHz
011:
7
60.6 kHz
30.3 kHz
15.2 kHz
100:
8
30.8 kHz
15.4 kHz
7.7 kHz
101:
9
15.5 kHz
7.8 kHz
3.9 kHz
110:
10
7.8 kHz
3.9 kHz
1.9 kHz
111:
Reserved
Serial Bus Interface Data Buffer Register
SBIDBR
(0F91H)
7
6
5
43210
(Initial value: **** ****) R/W



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