參數(shù)資料
型號： μPD780033Y
廠商： NEC Corp.
元件分類： 8位微控制器
英文描述： 8 Bit Single Chip Microcontrollers
中文描述： 8位單片機(jī)微控制器
文件頁數(shù)： 27/66頁
文件大?。?/td> 454K
代理商： ΜPD780033Y
μ
PD780031Y, 780032Y, 780033Y, 780034Y
Preliminary Data Sheet
27
(3) Serial interface IIC0
The serial interface IIC0 has the I
2
C (Inter IC) bus mode (multimaster supported).
I
2
C bus mode (multimaster supported)
This is an 8-bit data transfer mode using two lines: serial clock line (SCL0) and serial data bus line (SDA0).
This mode complies with the I
2
C bus format, and can output "start condition", "data", and stop condition"
during transmission via the serial data bus. These data are automatically detected by hardware during
reception.
Since the SCL0 and SDA0 are open-drain outputs in IIC0, pull-up resistors for the serial clock line and the
serial data bus line are required.
Figure 5-11. Block Diagram of Serial Interface IIC0
Internal bus
IIC status register
(IICS0)
IIC control register
(IICC0)
Slave address
register (SVA0)
Noise elimination
circuit
Noise elimination
circuit
Matched
signal
IIC shift register
(IIC0)
SO0 latch
IICE0
D
SET
CLEAR
CL01,
CL00
SDA0/P32
SCL0/P33
N-ch open-
drain output
Data hold
time correction
circuit
Acknowledge
detection
circuit
Wake-up control
circuit
Acknowledge
detection circuit
Stop condition
detection circuit
Serial clock counter
Interrupt request
signal generator
Serial clock control circuit
Serial clock wait
control circuit
Prescaler
INTIIC0
f
X
CLD0
IIC clock select
register (IICCL0)
Internal bus
LREL0
WREL0
SPIE0
WTIM0
ACKE0
STT0
SPT0
MSTS0
ALD0 EXC0
COI0
TRC0
ACKD0
STD0 SPD0
Start condition
detection circuit
DAD0 SMC0 DFC0 CL00
相關(guān)PDF資料
PDF描述
μPD780034Y 8 Bit Single Chip Microcontrollers
μPD780031 8 Bit Single Chip Microcontrollers(8位單片微控制器)
μPD780032 8 Bit Single Chip Microcontrollers(8位單片微控制器)
μPD780033 8 Bit Single Chip Microcontrollers(8位單片微控制器)
μPD780034 8 Bit Single Chip Microcontrollers(8位單片微控制器)
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