- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383357 > MAX3110E (Maxim Integrated Products, Inc.) 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors PDF資料下載
參數(shù)資料
| 型號： | MAX3110E |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | RS-232 |
| 英文描述： | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| 中文描述： | 5V的高速RS - 232收發(fā)器與0.1uF電容 |
| 文件頁數(shù)： | 20/32頁 |
| 文件大?。?/td> | 413K |
| 代理商： | MAX3110E |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁當(dāng)前第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
M
SPI/MICROWIRE-Compatible UART and ±15kV ESD-
Protected RS-232 Transceivers with Internal Capacitors
20
______________________________________________________________________________________
Baud-Rate Generator
The baud-rate generator determines the rate at which
the transmitter and receiver operate. Bits B3–B0 in the
write configuration register determine the baud-rate
divisor (BRD), which divides the X1 oscillator frequen-
cy. The on-board oscillator operates with either a
1.8432MHz or a 3.6864MHz crystal or is driven at X1
with a 45% to 55% duty-cycle square wave. Table 6
shows baud-rate divisors for given input codes as well
as the baud rate for 1.8432MHz and 3.684MHz crystals.
The generator’s clock is 16-times the baud rate.
Interrupt Sources and Masks
Using the Read Data or Write Data register clears the
interrupt
IRQ,
assuming the conditions that initiated the
interrupt no longer exist. Table 7 gives the details for
each interrupt source. Figure 6 shows the functional
diagram for the interrupt sources and mask blocks.
Following are two examples of setting up an IRQ for the
MAX3110E/MAX3111E:
Example 1. Set up only the transmit buffer-empty inter-
rupt. Send the 16-bit word below into DIN of the
MAX3110E/MAX3111E using the Write Configuration
register. This 16-bit word configures the MAX3110E/
MAX3111E for 9600bps, 8-bit words, no parity, and one
stop bit with a 1.8432MHz crystal.
binary 1100100000001010
HEX C80A
Example 2. Set up only the data-available (or data-
being-read) interrupt.
Send the 16-bit word below into DIN of the
MAX3110E/MAX3111E using the Write Configuration
register. This 16-bit word configures the MAX3110E/
MAX3111E for 9600bps, 8-bit words, no parity, and one
stop bit with a 1.8432MHz crystal.
binary 1100010000001010
HEX C40A
Receive FIFO
The MAX3110E/MAX3111E contain an 8-word receive
FIFO for data received by the UART to minimize
processor overhead. Using the UART-software shut-
down clears the receive FIFO. Upon power-up, the
receive FIFO is enabled. To disable the receive FIFO,
set the
FEN
bit high when writing to the Write
Configuration register. To check whether the FIFO is
enabled or disabled, read back the
FEN
bit using the
Read Configuration.
Table 6. Baud-Rate Selection*
115.2k
57.6k
230.4k**
BAUD
RATE
(f
OSC
=
3.6864MHz)
BAUD
B2 B1 B0
B3
2
4
0
0
0
0
0
1
1
0
1
0
0
0
0**
DIVISION
RATIO
57.6k
28.8k
115.2k**
BAUD
RATE
(f
OSC
=
1.8432MHz)
28.8k
14.4k
8
0
0
0
1
1
0
1
0
14.4k
7200
7200
3600
1800
76.8k
128
3
0
1
1
0
1
0
1
0
64
0
1
1
0
900
38.4k
1800
32
0
1
0
1
16
3600
38.4k
19.2k
9600
4800
24
48
1
1
0
1
1
0
1
0
12
1
0
1
0
4800
2400
9600
2400
1200
600
384
1
1
1
1
192
1
1
1
0
300
600
96
1
1
0
1
1200
6
1
0
0
1
19.2k
IRQ
N
RM MASK
TM MASK
PM MASK
TRANSITION ON RX
SHUTDOWN
RAM MASK
FRAMING ERROR
SHUTDOWN
RAM MASK
R
S
Q
NEW DATA AVAILABLE
DATA READ
TRANSMIT BUFFER EMPTY
DATA READ
PE = 1 AND RECEIVED
PARITY BIT = 1
PE = 0 OR RECEIVED
PARITY BIT = 0
R
S
Q
R
S
Q
Figure 6. Functional Diagram for Interrupt Sources and Mask
Blocks
*Standard baud rates shown in bold
**Default baud rate
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX3111E | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3111ECNI | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3111ECWI | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3110EEWI | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3111EEWI | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3110ECNI | 功能描述:UART 接口集成電路 5V SPI/uWire Compatible 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 |
| MAX3110ECNI+G36 | 功能描述:UART 接口集成電路 5V SPI/uWire Compatible 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 |
| MAX3110ECWI | 功能描述:UART 接口集成電路 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 |
| MAX3110ECWI+ | 制造商:Maxim Integrated Products 功能描述:LINE TRNSCVR 2TR 2TX 2RX 28SOIC W - Bulk |
| MAX3110ECWI+G36 | 功能描述:UART 接口集成電路 5V SPI/uWire Compatible 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。