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TMP93CS44 データシート(PDF) 149 Page - Toshiba Semiconductor

部品番号 TMP93CS44
部品情報  CMOS 16-Bit Microcontroller
PDF  224 Pages
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メーカー  TOSHIBA [Toshiba Semiconductor]
ホームページ  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TMP93CS44 データシート(HTML) 149 Page - Toshiba Semiconductor

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TMP93CS44/S45
2004-02-10
93CS44-147
3.10 Serial Bus Interface (SBI)
The TMP93CS44/S45 has a 1-channel serial bus interface which employs a clocked
synchronous 8-bit serial bus interface and an I2C bus.
The serial bus interface is connected to an external device through P33 (SDA) and P34 (SCL)
in the I2C bus mode; and through P32 (SCK), P33 (SO), and P34 (SI) in the clocked synchronous
8-bit SIO mode.
TMP93CS44/S45 has no an arbitration function which is necessary when two or more master
devices scramble for the bus control. In master mode, other devices which are connected on the
same bus need be slave devices (Single master).
Setting of every pins is as follows.
ODE<ODE34:33>
P3CR<P34C, P33C, P32C> P3FC<P32M, P34F, P33F, P32F>
I
2C Bus Mode
11
11X
X110
Clock Synchronous
8-Bit SIO Mode
XX
011
010
1111
X: Don’t care
3.10.1
Configuration
Figure 3.10.1 Serial Bus Interface (SBI)
P32
(SCK/ HWR )
SIO
clock
control
Divider
I
2C bus
clock
synchronous
+
Control
SBICR2/
SBISR
SCL
SCK
Input/
output
control
SO
SI
SDA
SBIDBR
SBICR1
SBICR3
Shift
register
Transfer
control
circuit
Noise
canceller
fc/4
Noise
canceller
I
2C bus
data control
SIO
data control
INTS2 interrupt request
P33
(SO/SDA)
P34
(SI/SCL)
SBI control
register 2/
SBI status
register
I
2C bus
address
register
SBI data
buffer
register
SBI control
register 1
SBI control
register 3
I2CAR



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