All data transfers are terminated if the CS input transitions high. Por" />
參數(shù)資料
型號: DS2180AQN+T&R
廠商: Maxim Integrated Products
文件頁數(shù): 32/35頁
文件大?。?/td> 0K
描述: IC TRANSCEIVER T1 44-PLCC
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 500
功能: 收發(fā)器
接口: T1
電路數(shù): 1
電源電壓: 4.5 V ~ 5.5 V
電流 - 電源: 3mA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 44-LCC(J 形引線)
供應(yīng)商設(shè)備封裝: 44-PLCC(16.59x16.59)
包裝: 帶卷 (TR)
包括: 警報生成和檢測,B7 填充模式,B8ZS 模式,錯誤檢測和計數(shù)器,“硬件”模式,透明模式
DS2180A
6 of 35
All data transfers are terminated if the CS input transitions high. Port control logic is disabled and SDO is
tri-stated when CS is high.
DATA I/O
Following the eight SCLK cycles that input an address/ command byte to write, a data byte is strobed into
the addressed register on the rising edges of the next eight SCLK cycles. Following an address/command
word to read, contents of the selected register are output on the falling edges of the next eight SCLK
cycles. The SDO pin is tri-stated during device write and may be tied to SDI in applications where the
host processor has a bi-directional I/O pin.
BURST MODE
The burst mode allows all onboard registers to be consecutively read and written by the host processor. A
burst read is used to poll all registers; RSR contents will be unaffected. This feature minimizes device
initialization time on power-up or system reset. Burst mode is initiated when ACB.7 is set and the address
nibble is 0000. Burst is terminated by a low-high transition on CS .
ACB: ADDRESS COMMAND BYTE Figure 2
(MSB)
(LSB)
BM
-
ADD3
ADD2
ADD1
AD0
R/ W
SYMBOL
POSITION
NAME AND DESCRIPTION
BM
ACB.7
Burst Mode. If set (and ACB.1 through ACB.4=0) burst read or
write is enabled.
-
ACB.6
Reserved, must be 0 for proper operation.
-
ACB.5
Reserved, must be 0 for proper operation.
ADD3
ACB.4
MSB of register address.
ADD0
ACB.1
LSB of register address.
R/ W
ACB.0
Read/Write Select.
0 = write addressed register.
1 = read addressed register.
SERIAL PORT READ/WRITE Figure 3
NOTES:
1. SDI sampled on rising edge of SCLK.
2. SDO updated on falling edge of SCLK.
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