LV24250LS Datasheet, PDF (10/18 Pages) Sanyo Semicon Device – Compact Portable Equipment 1-Chip FM Tuner IC

LV24250LS
(3). Register description (ON Contents of each Register)
Register 00h – CHIP_ID – Chip identify register (Read/Write)
7
6
5
4
3
2
1
ID [7 : 0]
bit 7-0 :
ID [7 : 0] : 8-bit chip ID.
LV24250LS : 15h
Note : To abort the command, write any value in this register.
Register 02h – RADIO_STAT – Radio station status (Read-Only)
7
6
5
4
3
2
1
RAD_IF
N/A
N/A
MO_ST
FS [2 : 0]
bit 7 :
RAD_IF : Radio interrupt flag.
0 = no interrupt
1 = interrupt
Note :
When status (field strength, stereo/mono) changes, this bit is set.
If Interrupt of IRQ pin is enabled, Interrupt pin is set by following IPOL register condition.
This bit is cleared by register read. In stand-by mode (PW_RAD = 0), this bit is 1
bit 6-5 :
NA [1 : 0] : NA 0 fixed
bit 4 :
MO_ST : Mono/stereo indicator
0 = Forced monaural
1 = Normal (Receiving in stereo mode)
bit 3-1
FS [2 : 0] : Fieldstrength :
0 = Low field strength
…
7 = High field strength
bit 0 :
SF5DB : Fieldstrength +5dB :
0 = FS5dB no UP
1 = FS5dB UP
For details, refer to Application note.
Register 0Bh – RFCAP – RF Cap bank (Read/Write)
7
6
5
4
3
2
1
RFCAP [7 : 0]
bit 7-0 :
RFCAP [7 : 0] : RF Oscillator CAP bank
0
0
SF5DB
0
No.A1699-10/18