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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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HT82K75REW bảng dữ liệu(PDF) 64 Page - Holtek Semiconductor Inc |
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HT82K75REW bảng dữ liệu(HTML) 64 Page - Holtek Semiconductor Inc |
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64 / 103 page  HT82M75REW/HT82K75REW Rev. 1.00 64 June 11, 2010 Primary RF Transceiver TX Operation Users activate the primary TX mode by setting SREG0x0D [2] to 1. After changing the SREG0x0D [2] value, users have to reset the RF and let RF state machine go to primary TX mode correctly. If primary TX mode is enabled, the RF Transceiver will enter power waving mode after ant packet transmits. If primary TX mode is not enabled, the RF Trans- ceiver will switch to RX mode after any packet transmits. If ACK response is needed and primary TX mode is enabled, the RF Transceiver will enter the Power Saving Mode after ACK frame received. If no ACK frame received, the RF Transceiver will not enter the Power Saving Mode until the max time to wait for an acknowledgement frame by setting SREG0x12 [6:0]. Registers associated with Power Saving Operation: Addr. File Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on POR 0x0D RXFLUSH rrrrr PTX r RXFLUSH 0110 0000 0x12 ACKTO r MATOP6 MATOP5 MATOP4 MATOP3 MATOP2 MATOP1 MATOP0 0011 1001 RF Transceiver Battery Monitor Operation The RF Transceiver has Battery Monitor function and the procedure to enable the Battery Monitor function is described as below. · Set the battery monitor threshold value at LREG0x205 [7:4]. · Enable the battery monitor by setting the LREG0x206 [3] to the value 1. · Read the battery-low indicator at SREG0x34 [5]. If this bit is set, it means that the supply voltage is lower than the bat- tery monitor threshold specified by LREG0x205 [7:4]. Registers associated with Power Saving Operation: Addr. File Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on POR 0x34 BATRXF r r BATIND r r r RDFF1 RXFIFO2 0000 0000 0x205 RFCTRL5 BATTH3 BATTH2 BATTH1 BATTH0 rrrr 0000 0000 0x206 RFCTRL6 TXFBW1 TXFBW0 32MXCO1 32MXCO0 BATEN r r r 1111 0000 RF Transceiver Register Definitions The Memory of the RF Transceiver is categorized into two kinds of addressing mode, known as Short Addressing Reg- isters and Long Addressing Registers. Each of the Register definition is described in the following sections. Legends of RF Transceiver Register Types Register Type Description R/W Read/Write register WT Write 1 to trigger register, automatically cleared by hardware RC Read to clear register R Read-only register R/W1C Read/Write ²1² to clear register |
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