參數(shù)資料
型號(hào): P90CE201
廠商: NXP Semiconductors N.V.
英文描述: 16-bit microcontroller
中文描述: 16位微控制器
文件頁數(shù): 40/77頁
文件大小: 235K
代理商: P90CE201
August 1993
40
Philips Semiconductors
Product specification
16-bit microcontroller
P90CE201
8
I
2
C-BUS INTERFACE
8.1
General
The P90CE201 contains two fully independent I
2
C-bus serial interfaces (I
2
C1 and I
2
C2); the functionality of both is
identical. The I
2
C-bus interfaces can operate in four modes:
1.
Master transmitter
2.
Master receiver
3.
Slave transmitter
4.
Slave receiver.
The I
2
C-bus interface is connected to the I
2
C-bus by a data pin (SDA) and by a clock pin (SCL). Data transport, clock
generation, address recognition and bus arbitration are all controlled by hardware. Each I
2
C-bus interface is controlled
by a set of six registers.
Fig.24 Block diagram of I
2
C-bus serial interface.
handbook, full pagewidth
MLB252
SLAVE ADDRESS
SnADR
GC
SHIFT REGISTER
SnDAT
SDAn
ARBITRATION LOGIC
SCLn
BUS CLOCK GENERATOR
SnSTA
I
7
6
5
4
3
2
1
0
SnCON
7
6
5
4
3
2
1
0
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