AKC695X Defined Data Types.
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AKC695X Defined Data Types.
Defined Data Types is a way to represent the AKC695X registers information
Some information appears to be inaccurate due to translation problems from Chinese to English.
The information shown here was extracted from Datasheet:
AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation.
Other information seems incomplete even in the original Chinese Datasheet.
For example: Reg 10 (0x0A). There is no information about it. The Reg11 and 12 seem wrong
◆ akc595x_reg0
Reg0 (type 0x00 / RW): configures register 0 (default: 0x4c) Address.
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 11
◆ akc595x_reg0.refined
| struct akc595x_reg0.refined |
| Data Fields |
|---|
|
uint8_t |
rsv: 2 |
Reserved - Debug use, do not change this value using. |
|
uint8_t |
mute: 1 |
1 - Mute L / R channel 0 - Normal operation |
|
uint8_t |
seekup: 1 |
Seek direction control bit. 0 = Seek down; 1 = Seek up. |
|
uint8_t |
seek: 1 |
0-> 1 Trigger tune process The STC bit is set high when the tune operation completes. |
|
uint8_t |
tune: 1 |
0-> 1 Trigger tune process The STC bit is set high when the tune operation completes. |
|
uint8_t |
fm_en: 1 |
1 = FM mode; 0 = AM mode |
|
uint8_t |
power_on: 1 |
1 = Chip on; 0 = Chip off |
◆ akc595x_reg1
Reg1 (type 0x01 / RW): configures register 1 (default: 0x10) Address.
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 12
◆ akc595x_reg1.refined
| struct akc595x_reg1.refined |
| Data Fields |
|---|
|
uint8_t |
fmband: 3 |
|
|
uint8_t |
amband: 4 |
|
◆ akc595x_reg2
Reg2 (type 0x02 / RW): configure register 2 (default: 0x4A) Address.
High channel number 5, the channel number and frequencies related as follows:
FM mode: Channel Freq = 25kHz * CHAN + 30MHz AM mode, when 5K channel number pattern:.
Channel Freq = 5kHz * CHAN AM mode, 3K channel number pattern. when: Channel Freq = 3kHz * CHAN.
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 12
◆ akc595x_reg2.refined
| struct akc595x_reg2.refined |
| Data Fields |
|---|
|
uint8_t |
channel: 5 |
(0:4) - 5 most significant bits that represents the channel (see reg3) |
|
uint8_t |
mode3k: 1 |
(5) - 1 = 3K; 0 = 5K |
|
uint8_t |
ref_32k_mode: 1 |
(6) - 1 = 32K ref. crystal clock; 0 = 12MHz ref crystal clock |
|
uint8_t |
rsv: 1 |
(7) - Reserved - Debug use, do not change this value using |
◆ akc595x_reg6
Reg6 (type 0x06 / RW): configures register 0 (default: 0xA1) Address.
◆ akc595x_reg6.refined
| struct akc595x_reg6.refined |
| Data Fields |
|---|
|
uint8_t |
phase_inv: 1 |
0 = audio output inphase, 1 = opposite phase, for single speaker |
|
uint8_t |
line: 1 |
0 = Radio mode; 1 = Line Mode |
|
uint8_t |
volume: 6 |
Volume: 0 ~ 63 (<24 = mute; 24 ~ 63) |
◆ akc595x_reg7
Reg7 (type 0x07 / RW): configures register 0 (default: 0xA1) Address.
stereo and mono: "00" the auto stereo, there Stereo_th control threshold ; "10" long as the pilot is forced stereo "x1" forced mono demodulator
◆ akc595x_reg7.refined
| struct akc595x_reg7.refined |
| Data Fields |
|---|
|
uint8_t |
bw: 2 |
00 = 150K; 01 = 200K; 10 = 50K; 11 = 100K |
|
uint8_t |
stereo_mono: 2 |
"00" the auto stereo, there Stereo_th control threshold ; "10" long as the pilot is forced stereo "x1" forced mono demodulator |
|
uint8_t |
bben: 1 |
Base boost enable 0; Close bass 1. |
|
uint8_t |
de: 1 |
De-emphasis mode. 1 = 75 μ s (USA); 0 = 50 μ s (China) |
|
uint8_t |
rsv: 2 |
Measured using, set to "0" during normal use. |
◆ akc595x_reg8
Reg8 (type 0x08 / RW): configures register 8 (default: 0x58) Address.
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 14
◆ akc595x_reg8.refined
| struct akc595x_reg8.refined |
| Data Fields |
|---|
|
uint8_t |
stereo_th: 2 |
FM stereo demodulation start CNR threshold - 00=4, 01=8, 10=12,11=16. |
|
uint8_t |
fd_th: 2 |
|
|
uint8_t |
am_cnr_th: 2 |
When AM mode, chip sets and lighting sentence carrier to noise ratio threshold. |
|
uint8_t |
fm_cnr_th: 2 |
When the FM mode, chip sets and lighting sentence carrier to noise. Ratio limit 00-2dB 01-3dB 10-4dB 11-5dB door. |
◆ akc595x_reg9
Reg9 (type 0x09 / RW): configure register 9 (default: 0x07) Address.
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 14
◆ akc595x_reg9.refined
| struct akc595x_reg9.refined |
| Data Fields |
|---|
|
uint8_t |
iv_en: 1 |
When low voltage power supply, whether to enter the low-voltage operation mode can. |
|
uint8_t |
rsv1: 1 |
Reserved. Measured using, do not change this value. |
|
uint8_t |
osc_en: 1 |
Oscillator source selection. 0 = 0-External XO; 1 = 1-Crystal. |
|
uint8_t |
pd_adc_vol: 1 |
0 = volume potentiometer mode |
|
uint8_t |
rsv2: 4 |
Reserved. Measured using, do not change this value. |
◆ akc595x_reg11
Reg11 (type 0x0B / RW): configure register 9 (default: 0xE0) Address.
Sets FM seek step.
| spece | step |
| 00 | 25 kHz |
| 01 | 50 kHz |
| 10 | 100 kHz |
| 11 | 200 kHz |
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 14
◆ akc595x_reg11.refined
| struct akc595x_reg11.refined |
| Data Fields |
|---|
|
uint8_t |
rsv1: 2 |
Reserved. Measured using, do not change this value. |
|
uint8_t |
space: 2 |
00 = 25kHz; 01 = 50kHz; 10 = 100kHz; 11 = 200kHz |
|
uint8_t |
rsv2: 4 |
Reserved. Measured using, do not change this value. |
◆ akc595x_reg12
Reg12 (type 0x0C / RW): configure register 11 (default: 0x??) Address.
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 15
◆ akc595x_reg12.refined
| struct akc595x_reg12.refined |
| Data Fields |
|---|
|
uint8_t |
rsv2: 5 |
Reserved. Measured using, do not change this value. |
|
uint8_t |
pd_rx: 1 |
0 = analog and RF; 1 = closed channel |
|
uint8_t |
res: 1 |
|
|
uint8_t |
pd_adc: 1 |
Signal channel ADC signal path; 0 = Close; 1 = Open. |
◆ akc595x_reg13
Reg13 (type 0x0D / RW): configure register 11 (default: 0x??) Address.
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 15
◆ akc595x_reg13.refined
| struct akc595x_reg13.refined |
| Data Fields |
|---|
|
uint8_t |
rsv3: 2 |
Measured using, do not change this value. |
|
uint8_t |
vol_pre: 2 |
Adjusting the output volume of the entire values: 00: 0dB 01: 3.5dB. |
|
uint8_t |
rsv2: 2 |
Measured using, do not change this value. |
|
uint8_t |
st_led: 1 |
0 = tund pin is tuned lamp; When 1-FM and non wtmode, tund indicator pin is stereo demodulation, tuning lamp remainder |
|
uint8_t |
rsv1: 1 |
Measured using, do not change this value. |
◆ akc595x_reg20
Reg20 (type 0x14 / R)
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 15
◆ akc595x_reg20.refined
| struct akc595x_reg20.refined |
| Data Fields |
|---|
|
uint8_t |
readchan: 5 |
Current Channel number (high 5bit). See Reg21. |
|
uint8_t |
tuned: 1 |
When transferred to station 1, station search software can use this determination bit table. |
|
uint8_t |
stc: 1 |
0 = Not complete; 1 = Complete during Seek and Tune in the register 0. |
|
uint8_t |
st: 1 |
??? 0 to the current situation other FM stereo radio ???? |
◆ akc595x_reg22
Reg22 (type 0x16 / R)
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 15
◆ akc595x_reg22.refined
| struct akc595x_reg22.refined |
| Data Fields |
|---|
|
uint8_t |
cnram: 7 |
Carrier to noise ratio of the AM signal format, in dB. |
|
uint8_t |
mode3k_f: 1 |
1 = AM 3K channel spacing; 0 = AM 5K channel spacing |
◆ akc595x_reg23
Reg23 (type 0x17 / R)
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 15
◆ akc595x_reg23.refined
| struct akc595x_reg23.refined |
| Data Fields |
|---|
|
uint8_t |
cnrfm: 7 |
Carrier to noise ratio of the FM signal format, in dB. |
|
uint8_t |
st_dem: 1 |
Only the demodulated FM stereo (Stereo ratio is greater than 30%) show only one. |
◆ akc595x_reg24
Reg24 (type 0x18 / R)
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 15
◆ akc595x_reg24.refined
| struct akc595x_reg24.refined |
| Data Fields |
|---|
|
uint8_t |
lvmode: 1 |
Low voltage maximum volume limit mode indication bit. |
|
uint8_t |
rsv: 1 |
Reserved. |
|
uint8_t |
pgalevel_if: 3 |
RF power control loop gain level, the greater the level, a high gain of approximately. |
|
uint8_t |
pgalevel_rf: 3 |
RF power control loop gain level, the greater the level, a high gain of approximately. |
◆ akc595x_reg25
Reg25 (type 0x19 / R)
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 15
◆ akc595x_reg25.refined
| struct akc595x_reg25.refined |
| Data Fields |
|---|
|
uint8_t |
vbat: 6 |
6 bits indicating the supply voltage ( unsigned number ) |
|
uint8_t |
rsv: 2 |
Reserved. |
◆ akc595x_reg27
Reg27 (type 0x1B / R)
Antenna aperture can be calculated using signal levels rssi, pgalevel_rf, pgalevel_if
FM / SW : Pin (dBuV) = 103 - rssi - 6 * pgalevel_rf - 6 * pgalevel_if
MW / LW : Pin (dBuV) = 123 - rssi - 6 * pgalevel_rf - 6 * pgalevel_if
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 15
◆ akc595x_reg27.refined
| struct akc595x_reg27.refined |
| Data Fields |
|---|
|
uint8_t |
rssi: 7 |
Antenna aperture can be calculated using signal levels rssi. |
|
uint8_t |
rsv: 1 |
Reserved. |
◆ akc595x_reg3
Reg3 (type 0x03 / RW): configures register 3 (default: 0xC8) Address.
8 least significant bits representing the channel value (see reg2)
◆ akc595x_reg4
Reg4 (type 0x04 / RW): configures register 4 (default: 0x19) Address.
Custom channel band start number chan = 32 * usr_chan_start
◆ akc595x_reg5
Reg5 (type 0x05 / RW): configures register 5 (default: 0x32) Address.
Custom end-band channel number chan = 32 * usr_chan_stop
◆ akc595x_reg21
Reg21 (type 0x15 / R)
Reg21 is the Current Channel number (low 8bit). See Reg 20.
◆ akc595x_reg26
Reg26 (type 0x1A / R)
When the frequency offset indicated, complement format, greater than 127, 256 can be reduced to normal values, attention here to 1kHz units FM, AM in units of 100Hz
- See also
- AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 15 When the frequency offset indicated, complement format, greater than 127, 256 can be
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