參數(shù)資料
型號(hào)： MAX14830ETM+
廠商： Maxim Integrated Products
文件頁數(shù)： 59/68頁
文件大?。?/td> 0K
描述： SEMICONDUCTOR OTHER
標(biāo)準(zhǔn)包裝： 43
系列： *
62
Maxim Integrated
Quad Serial UART with 128-Word FIFOs
MAX14830
Single-Byte Read
With this operation the master sends an address and
receives 1 or 2 data bytes from the slave device
(Figure 24). The read byte procedure is as follows:
1) The master sends a START condition.
2) The master sends the 7-bit slave ID plus a write bit (low).
3) The addressed slave asserts an ACK on the data line.
4) The master sends the 8-bit register address
5) The active slave asserts an ACK on the data line only
if the address is valid (NAK if not).
6) The master sends a repeated START (Sr).
7) The master sends the 7-bit slave ID plus a read bit (high).
8) The addressed slave asserts an ACK on the data line.
9) The slave sends 8 data bits.
10) The master asserts a NACK on the data line.
11) The master generates a STOP condition.
Burst Read
With this operation the master sends an address and
receives multiple data bytes from the slave device
(Figure 25). The burst read procedure is as follows:
1) The master sends a START condition.
2) The master sends the 7-bit slave ID plus a write bit (low).
3) The addressed slave asserts an ACK on the data line.
4) The master sends the 8-bit register address.
5) The slave asserts an ACK on the data line only if the
address is valid (NAK if not).
6) The master sends a repeated START condition.
7) The master sends the 7-bit slave ID plus a read bit (high).
8) The slave asserts an ACK on the data line.
9) The slave sends 8 bits of data.
10) The master asserts an ACK on the data line.
11) Repeat 9 and 10 (N-2) times.
12) The slave sends the last 8 data bits.
13) The master asserts a NACK on the data line.
14) The master generates a STOP condition.
Figure 24. Read Byte Sequence
Figure 25. Burst Read Sequence
S
Sr
DEVICE SLAVE ADDRESS - W
A
DEVICE SLAVE ADDRESS - R
READ SINGLE BYTE
A
REGISTER ADDRESS
A
8 DATA BITS
NA
FROM MASTER TO STAVE
FROM SLAVE TO MASTER
P
S
Sr
DEVICE SLAVE ADDRESS - W
A
DEVICE SLAVE ADDRESS - R
BURST READ
A
REGISTER ADDRESS
A
8 DATA BITS - 1A
A
8 DATA BITS - 3
8 DATA BITS - 2A
8 DATA BITS - NNA
FROM MASTER TO STAVE
FROM SLAVE TO MASTER
P
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參數(shù)描述
MAX14830ETM+ 功能描述:UART 接口集成電路 Quad Serial UART w/128-Word FIFOs RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
MAX14830ETM+T 功能描述:UART 接口集成電路 Quad Serial UART w/128-Word FIFOs RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
MAX14830EVKIT# 功能描述:界面開發(fā)工具 MAX14830 Eval Kit RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
MAX14830EVKIT+ 制造商:Maxim Integrated Products 功能描述:QUAD UART EV-KIT WITH IO-LINK AND MULTIPROTOCOL - Boxed Product (Development Kits)
MAX1483C/D+ 功能描述:RS-485接口IC low-power transceivers for RS-485 and RS-422 communication RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
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