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參數(shù)資料
| 型號： | MCW1001AT-I/SS |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 8/66頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC INTERFACE SOCKET XLP 28-SSOP |
| 標準包裝： | 2,100 |
| 系列： | * |
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MCW1001A
DS70671A-page 16
Preliminary
2011 Microchip Technology Inc.
2.4
MCW1001A to MRF24WB0 802.11
Module Interface
2.4.1
WSPI PINS
The MCW1001A Serial Peripheral Interface (WSPI) is
used to communicate with the MRF24WB0 transceiver
module.
2.4.2
WINT PIN
The WSPI interface works with the Interrupt line
(WINT) and must be pulled “High” through 4.7 k
resistor to VDD. When data is available for the
MCW1001A during operation, the WINT line will be
asserted (logic low) by the MRF24WB0 module. After
the data is transferred to the MCW1001A, the WINT
line will then be de-asserted (logic high) by the
MRF24WB0 module.
2.4.3
WCS PIN
The WCS pin must be connected to the CS pin of the
MRF24WB0 and cannot be held low permanently. The
falling edge of WCS is used to indicate the start of a
transfer. The rising edge of WCS is used to indicate the
completion of a single transfer.
2.4.4
WHIB PIN
The WHIB pin is used to control the HIBERNATE
feature of the MRF24WB0 and must be pulled “High”
via 1 M resistor to VDD. When WHIB is driven high, it
puts the MRF24WB0M into Hibernate mode. The
module contains about 70 uF of internal bulk
capacitance so the system power supply should be
provisioned to supply sufficient charge on release of
hibernate to ensure proper startup. For more
information on controlling the low-power modes of the
MCW1001A, refer to Section 6.0, Messaging API.
2.4.5
WRST PIN
The WRST pin is used to control RESET to the
MRF24WB0.
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