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参数资料
型号： M38039FFFP
元件分类： 微控制器/微处理器
英文描述： 8-BIT, FLASH, 16.8 MHz, MICROCONTROLLER, PQFP64
封装： 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64
文件页数： 105/136页
文件大小： 2007K
代理商： M38039FFFP
70
3803/3804 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Function
In conformity with Philips I2C-BUS
standard:
10-bit addressing format
7-bit addressing format
High-speed clock mode
Standard clock mode
In conformity with Philips I2C-BUS
standard:
Master transmission
Master reception
Slave transmission
Slave reception
16.1 kHz to 400 kHz (at
φ= 4 MHz)
Table 10 Multi-master I2C-BUS interface functions
Item
Format
Communication mode
System clock
φ = f(XIN)/2 (high-speed mode)
φ = f(XIN)/8 (middle-speed mode)
MULTI-MASTER I2C-BUS INTERFACE
The 3804 group has the multi-master I2C-BUS interface.
The multi-master I2C-BUS interface is a serial communications cir-
cuit, conforming to the Philips I2C-BUS data transfer format. This
interface, offering both arbitration lost detection and a synchro-
nous functions, is useful for the multi-master serial
communications.
Figure 64 shows a block diagram of the multi-master I2C-BUS in-
terface and Table 10 lists the multi-master I2C-BUS interface
functions.
This multi-master I2C-BUS interface consists of the I2C slave ad-
dress registers 0 to 2, the I2C data shift register, the I2C clock
control register, the I2C control register, the I2C status register, the
I2C START/STOP condition control register, the I2C special mode
control register, the I2C special mode status register, and other
control circuits.
When using the multi-master I2C-BUS interface, set 1 MHz or
more to the internal clock
φ.
Fig. 64 Block diagram of multi-master I2C-BUS interface
: Purchase of MITSUBISHI ELECTRIC CORPORATIONS I2C components conveys a license under the Philips I2C Patent Rights to use these components
an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips.
SCL clock frequency
I2C status register
b7
b0
SAD6SAD5 SAD4 SAD3 SAD2 SAD1 SAD0 RWB
b7
b0
b7
MST TRX BB PIN
AL AAS AD0 LRB
b0
S1
BB
circuit
b7b0
ACK
BIT
FAST
MODE
CCR4 CCR3 CCR2 CCR1 CCR0
S0
S2
S0D0–2
SIS
I2C START/STOP condition control
register
SIP SSC4 SSC3 SSC2 SSC1SSC0
b7b0
TISS
TSEL
10BIT
SAD
ALS
BC2BC1
BC0
S1D
ES0
b7b0
SPCF
S3
PIN2
AAS2AAS1AAS0
b7b0
SPCFL
S3D
PIN2
HD
PIN2
IN
HSLAD ACKI
CON
I2 C special mode control register
I2C special mode status register
I2C slave address registers 0 to 2
Noise
elimination
circuit
Address comparator
Data
control
circuit
System clock (
φ)
Interrupt
generating
circuit
Interrupt request signal
(I2CIRQ)
Bit counter
Clock
control
circuit
Internal data bus
Clock division
AL
circuit
I2C clock control register
I2C control register
Serial
clock
(SCL)
I2C data shift register
Interrupt request signal
(
SCL, SDA, IRQ)
Interrupt
generating
circuit
Serial data
(SDA)
Noise
elimination
circuit
S2D
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