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CC115LRGPR 数据表(PDF) 52 Page - Texas Instruments |
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CC115LRGPR 数据表(HTML) 52 Page - Texas Instruments |
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52 / 74 page ![]() DEVIATION _ E XOSC dev 17 ƒ ƒ (8 DEVIATION _ M) 2 2 = × + × CHANSPC _ E XOSC CHANNEL 18 ƒ ƒ (256 CHANSPC _ M) 2 2 D = × + × CC115L SWRS105B – MAY 2011 – REVISED JUNE 2014 www.ti.com Table 5-34. 0x14: MDMCFG0 - Modem Configuration Bit Field Name Reset R/W Description 8-bit mantissa of channel spacing. The channel spacing is multiplied by the channel number CHAN and added to the base frequency. It is unsigned and has the format: 7:0 CHANSPC_M[7:0] 248 (0xF8) R/W The default values give 199.951 kHz channel spacing (the closest setting to 200 kHz), assuming 26.0 MHz crystal frequency. Table 5-35. 0x15: DEVIATN - Modem Deviation Setting Bit Field Name Reset R/W Description 7 R0 Not used. 6:4 DEVIATION_E[2:0] 4 (100) R/W Deviation exponent. 3 R0 Not used. Specifies the nominal frequency deviation from the carrier for a '0' (-DEVIATN) and '1' (+DEVIATN) in a mantissa- exponent format, interpreted as a 4-bit value with MSB implicit 1. The resulting frequency 2-FSK/GFSK/4- deviation is given by: FSK 2:0 DEVIATION_M[2:0] 7 (111) R/W The default values give ±47.607 kHz deviation assuming 26.0 MHz crystal frequency. OOK This setting has no effect Table 5-36. 0x17: MCSM1 - Main Radio Control State Machine Configuration Bit Field Name Reset R/W Description 7:6 R0 Not used 5:2 3 (1100) R/W Use setting from SmartRF Studio SWRC176 Select what should happen when a packet has been sent Setting Next state after finishing packet transmission 0 (00) IDLE 1:0 TXOFF_MODE[1:0] 0 (00) R/W 1 (01) FSTXON 2 (10) Stay in TX (start sending preamble) 3 (11) Reserved 52 Detailed Description Copyright © 2011–2014, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: CC115L |
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