參數資料
型號: M3727GM8-XXXSP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP42
封裝: 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-42
文件頁數: 68/131頁
文件大?。?/td> 1130K
代理商: M3727GM8-XXXSP
M3727GM6/M8–XXXSP/FP M37272E8SP/FP
Rev.1.00
Apr 01, 2001
page 39 of 127
REJ03B0132-0100Z
Fig. 8.6.12 Address Data Communication Format
SSlave address
A
DataA
DataA/A
P
R/W
7 bits“0”1 to 8 bits1 to 8 bits
SSlave address
A
Data
AData
AP
7 bits“1”1 to 8 bits1 to 8 bits
(1) A master-transmitter transmits data to a slave-receiver
S
Slave address
1st 7 bits
A
Data
7 bits“0”8 bits1 to 8 bits
(2) A master-receiver receives data from a slave-transmitter
Slave address
2nd byte
A
DataA/A
P
1 to 8 bits
S
Slave address
1st 7 bits
A
7 bits“0”8 bits7 bits
(3) A master-transmitter transmits data to a slave-receiver with a 10-bit address
Slave address
2nd byte
Data
1 to 8 bits
Sr
Slave address
1st 7 bits
A
Data
A
P
1 to 8 bits
“1”
(4) A master-receiver receives data from a slave-transmitter with a 10-bit address
S: START conditionP : STOP condition
A: ACK bit
R/W : Read/Write bit
Sr : Restart condition
From master to slave
From slave to master
R/W
8.6.12 Precautions when using multi-master
I2C-BUS interface
(1) Read-modify-write instruction
The precautions when the raead-modify-write instruction such as SEB,
CLB etc. is executed for each register of the multi-master I2C-BUS
interface are described below.
I2C data shift register (S0)
When executing the read-modify-write instruction for this register
during transfer, data may become a value not intended.
I2C address register (S0D)
When the read-modify-write instruction is executed for this register
at detecting the STOP condition, data may become a value not
______
intended. It is because hardware changes the read/write bit (RBW)
at the above timing.
I2C status register (S1)
Do not execute the read-modify-write instruction for this register
because all bits of this register are changed by hardware.
I2C control register (S1D)
When the read-modify-write instruction is executed for this register
at detecting the START condition or at completing the byte transfer,
data may become a value not intended. Because hardware changes
the bit counter (BC0–BC2) at the above timing.
I2C clock control register (S2)
The read-modify-write instruction can be executed for this register.
(2) START condition generating procedure us-
ing multi-master
Procedure example (The necessary conditions of the generating
procedure are described as the following to ).
LDA
(Taking out of slave address value)
SEI
(Interrupt disabled)
BBS 5,S1,BUSBUSY
(BB flag confirming and branch process)
BUSFREE:
STA S0
(Writing of slave address value)
LDM #$F0, S1
(Trigger of START condition generating)
CLI
(Interrupt enabled)
BUSBUSY:
CLI
(Interrupt enabled)
Use “STA,” “STX” or “STY” of the zero page addressing instruction
for writing the slave address value to the I2C data shift register.
Use “LDM” instruction for setting trigger of START condition gener-
ating.
Write the slave address value of above and set trigger of START
condition generating of above continuously shown the above
procedure example.
Disable interrupts during the following three process steps:
BB flag confirming
Writing of slave address value
Trigger of START condition generating
When the condition of the BB flag is bus busy, enable interrupts
immediately.
相關PDF資料
PDF描述
M3727GM8-XXXFP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42
M3727GM6-XXXFP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42
M37280MF-XXXSP 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP64
M37280MK-XXXSP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP64
M37280MKH-XXXSP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP64
相關代理商/技術參數
參數描述
M37280EKSP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
M37280EKSS 功能描述:EPROM MCU/8BIT CMOS EMULATION CH RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 過時/停產零件編號 系列:- 標準包裝:1 系列:- 傳感器類型:CMOS 成像,彩色(RGB) 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關產品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP
M37280MF 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
M37280MF_03 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
M37280MF-171SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER