Datasheet KT0803K (KT Micro) - 7
| Hersteller | KT Micro |
| Beschreibung | Monolithic Digital Stereo FM Transmitter Radio-Station-on-a-Chip |
| Seiten / Seite | 18 / 7 — KT0803K. Register Bank. Register 0x00 (Address: 0x00, Default value: 0x81) |
| Dateiformat / Größe | PDF / 974 Kb |
| Dokumentensprache | Englisch |
KT0803K. Register Bank. Register 0x00 (Address: 0x00, Default value: 0x81)
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KT0803K
Register Bank
The register bank stores channel frequency codes, calibration parameters, operation status, mode and power controls, which can be accessed by the internal digital controller, state machines and external micro controllers through the serial interface. All registers are 8 bits wide. Control logics are active high unless specifically noted. Register 7 6 5 4 3 2 1 0 0x00 CHSEL[8:1] 0x01 RFGAIN[1:0] PGA[2:0] CHSEL[11:9] 0x02 CHSEL[0] RFGAIN[3] - - MUTE PLTADJ - PHTCNST 0x04 MONO PGA_LSB[1:0] FDEV[1:0] BASS[1:0] 0x0B - - PDPA - - - - - 0x0E - - - - - - PA_BIAS - 0x0F - - - PW_OK - SLNCID - - 0x10 - - - LMTLVL[1:0] - - PGAMOD 0x12 SLNCDIS SLNCTHL[2:0] SLNCTHH[2:0] SW_MOD 0x13 RFGAIN[2] - - - - PA_CTRL - - 0x14 SLNCTIME[2:0] SLNCCNTHIGH[2:0] - - 0x16 - - - SLNCCNTLOW[2:0] Note 1: ONLY read/write the defined registers. Note 2: Shaded registers are used in KT0803.
Register 0x00 (Address: 0x00, Default value: 0x81)
Bit 7 6 5 4 3 2 1 0 KT0803K CHSEL[8:1] KT0803 CHSEL[7:0] As the minimum frequency step is changed from 100KHz in KT0803 to 50KHz in KT0803K. The 12 bits (Reg0x1[2:0]; Reg0x0[7:0]; Reg0x2[7]) are required to select the FM transmission channel instead of 11 bits in KT0803. If a 100 KHz step is wanted, set Reg0x2[7] to 0 and thus no software change is needed from KT0803 to KT0803K to set the same FM frequency.
Register 0x01 (Address: 0x01, Default value: 0xC3)
Bit 7 6 5 4 3 2 1 0 KT0803K RFGAIN[1:0] PGA[2:0] CHSEL[11:9] KT0803 RFGAIN[1:0] PGA[2:0] CHSEL[10:8] Bits Type Default Label Description 7:6 RW 11 RFGAIN[1:0] Transmission Range Adjustment with RFGAIN[3] in Reg 0x02[6] and RFGAIN[2] in Reg 0x13[7] (See Table 4 below) 5:3 RW 000 PGA[2:0] PGA Gain Control (see PGA_LSB description, Reg 0x04) 111: 12dB 110: 8dB 101: 4dB 100: 0dB 000: 0dB 001: -4dB 010: -8dB 011: -12dB 2:0 RW 011 CHSEL[11:9] FM Channel Selection[11:9] Copyright ©2009, KT Micro, Inc. 7
Register Bank
The register bank stores channel frequency codes, calibration parameters, operation status, mode and power controls, which can be accessed by the internal digital controller, state machines and external micro controllers through the serial interface. All registers are 8 bits wide. Control logics are active high unless specifically noted. Register 7 6 5 4 3 2 1 0 0x00 CHSEL[8:1] 0x01 RFGAIN[1:0] PGA[2:0] CHSEL[11:9] 0x02 CHSEL[0] RFGAIN[3] - - MUTE PLTADJ - PHTCNST 0x04 MONO PGA_LSB[1:0] FDEV[1:0] BASS[1:0] 0x0B - - PDPA - - - - - 0x0E - - - - - - PA_BIAS - 0x0F - - - PW_OK - SLNCID - - 0x10 - - - LMTLVL[1:0] - - PGAMOD 0x12 SLNCDIS SLNCTHL[2:0] SLNCTHH[2:0] SW_MOD 0x13 RFGAIN[2] - - - - PA_CTRL - - 0x14 SLNCTIME[2:0] SLNCCNTHIGH[2:0] - - 0x16 - - - SLNCCNTLOW[2:0] Note 1: ONLY read/write the defined registers. Note 2: Shaded registers are used in KT0803.
Register 0x00 (Address: 0x00, Default value: 0x81)
Bit 7 6 5 4 3 2 1 0 KT0803K CHSEL[8:1] KT0803 CHSEL[7:0] As the minimum frequency step is changed from 100KHz in KT0803 to 50KHz in KT0803K. The 12 bits (Reg0x1[2:0]; Reg0x0[7:0]; Reg0x2[7]) are required to select the FM transmission channel instead of 11 bits in KT0803. If a 100 KHz step is wanted, set Reg0x2[7] to 0 and thus no software change is needed from KT0803 to KT0803K to set the same FM frequency.
Register 0x01 (Address: 0x01, Default value: 0xC3)
Bit 7 6 5 4 3 2 1 0 KT0803K RFGAIN[1:0] PGA[2:0] CHSEL[11:9] KT0803 RFGAIN[1:0] PGA[2:0] CHSEL[10:8] Bits Type Default Label Description 7:6 RW 11 RFGAIN[1:0] Transmission Range Adjustment with RFGAIN[3] in Reg 0x02[6] and RFGAIN[2] in Reg 0x13[7] (See Table 4 below) 5:3 RW 000 PGA[2:0] PGA Gain Control (see PGA_LSB description, Reg 0x04) 111: 12dB 110: 8dB 101: 4dB 100: 0dB 000: 0dB 001: -4dB 010: -8dB 011: -12dB 2:0 RW 011 CHSEL[11:9] FM Channel Selection[11:9] Copyright ©2009, KT Micro, Inc. 7