參數(shù)資料
型號: OL2381AHN
廠商: NXP Semiconductors N.V.
元件分類: 微波射頻器件
英文描述: Highly Integrated Single Chip Sub 1-GHz RF Transceiver
封裝: OL2381AHN<SOT617-3 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-3.html<1<Always Pb-free,;
文件頁數(shù): 19/43頁
文件大?。?/td> 2978K
代理商: OL2381AHN
AN11017
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Application note
Rev. 2 — 10 May 2011
19 of 43
NXP Semiconductors
AN11017
Transceiver OL2381 using wireless M-BUS
4.4.2
Port PORTCON1
Register PORTCON1 is set as shown in
Figure 19
(P13/SDO is not used, and P12 is set
as the clock pin). For applications that require an inverted clock, case bit P12INV is set.
Table 17.
M-Bus radio link
4.4.3
Port PORTCON2
Register PORTCON2 is set as shown in
Figure 20
(bits SEP_TX_LINES and
SEP_RX_OUT set to 11).
Table 18.
M-Bus radio link
The configuration of P14 depends on the RF switch; details are given in data sheet
Ref. 1
.
In this example it is set to provide “0” for RX-mode and “1” for TX-mode.
Fig 19. Port configuration PORTCON1
M-Bus register PORTCON1 settings
OL2381 register address
PORTCON1 (0x11)
0x04
0x05
Information
S, T, C, R
F
pin 12 is the clock for RX and TX
pin 12 inverts the clock for RX and TX
019aab771
Fig 20. Port configuration PORTCON2
M-Bus register PORTCON2 settings
OL2381 register address
PORTCON2 (0x12)
S, T, C, R, F
0x66
Information
7-wire interface
019aab772
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