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| 型号： | M37221MAH-XXXFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42 |
| 封装： | 0.450 INCH, 0.80 MM INCH, PLASTIC, SSOP-42 |
| 文件页数： | 38/112页 |
| 文件大小： | 1207K |
| 代理商： | M37221MAH-XXXFP |
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31
Rev. 1.0
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
M37221M4H/M6H/M8H/MAH–XXXSP/FP
M37221EASP/FP
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 8.6.1 Multi-master I2C-BUS Interface Functions
Item
Format
Communication mode
SCL clock frequency
φ : System clock = f(XIN)/2
Note : We are not responsible for any third party’s infringement of patent rights
or other rights attributable to the use of the control function (bits 6 and 7
of the I2C control register at address 00DA16) for connections between
the I2C-BUS interface and ports (SCL1, SCL2, SDA1, SDA2).
8.6 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 synchronous
functions, is useful for the multi-master serial communications.
Figure 8.6.1 shows a block diagram of the multi-master I2C-BUS in-
terface and Table 8.6.1 shows multi-master I2C-BUS interface func-
tions.
This multi-master I2C-BUS interface consists of the I2C address reg-
ister, the I2C data shift register, the I2C clock control register, the I2C
control register, the I2C status register and other control circuits.
Fig. 8.6.1 Block Diagram of Multi-master I2C-BUS Interface
I2C address register (S0D)
b7
b0
SAD6 SAD5 SAD4 SAD3 SAD2 SAD1 SAD0 RBW
Noise
elimination
circuit
Serial
data
(SDA)
Address comparator
b7
I C data shift register
b0
Data
control
circuit
I2C clock control register (S2)
System clock
(
φ)
Interrupt
generating
circuit
Interrupt
request signal
(IICIRQ)
b7
MST TRX BB
PIN
AL AAS AD0 LRB
b0
I C status
register
(S1)
b7
b0
BSEL1 BSEL0 10BIT
SAD
ALS
BC2 BC1 BC0
I2C control register (S1D)
Bit counter
BB
circuit
Clock
control
circuit
Noise
elimination
circuit
Serial
clock
(SCL)
b7
b0
ACK
BIT
FAST
MODE CCR4 CCR3 CCR2 CCR1 CCR0
Internal data bus
Clock division
S0
AL
circuit
ESO
2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M37221MAH-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37224M3 | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37224M3-050SP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37224M3-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37225ECSP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
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