LV25700PM Datasheet, PDF (65/68 Pages) Sanyo Semicon Device – For Car Radio Single chip Tuner IC

SA 255. Firmware Information
LV25700PM
After this command is sent, the LV25700 enters the firmware information send wait status.
The firmware information can be read by reading 8 bytes.
For further details, refer to IIC-DATA-OUTPUT (FIRMWARE INFORMATION).
* This command consists of only a slave address and sub address, and there is no data.
I²C-DATA-OUTPUT
S 1 1 1 0 1 1 1 1 ACK ∼
SLAVE ADDRESS (READ)
∼-
-
-
- C19 C18 C17 C16 ACK
(2) IF-COUNT
∼ C15 C14 C13 C12 C11 C10 C09 C08 ACK C07 C06 C05 C04 C03 C02 C01 C00 ACK P
(2) IF-COUNT
Number
(1)
(2)
Description
Calls the data inside the IC.
Current SD only
Data obtained by latching the contents of the IF count counter (20-bit binary counter).
C19: Binary counter MSB
C0: Binary counter LSB
I²C-DATA-OUTPUT (SA DATA OUTPUT)
This is used to notify the host microcontroller of the LV25700 sub address setting information.
Set the slave address (write), and load the sub address (01 to 95) with the information to be acquired with D7 set to 1.
Next set the slave address (read) and read 8 bytes (fixed to 8 bytes).
8 bytes of sub address information can be read starting from the sub address n designated by the slave address (write) to
n + 7. 95 (0x5F) and subsequent data are unpredictable.
S 1 1 1 0 1 1 1 0 ACK 1 * * * * * * * ACK P
Slave address (WRITE)
Sub address n (00 to 95) with the information to be acquired
S 1 1 1 0 1 1 1 0 ACK * * * * * * * * ACK ∼
Slave address (READ)
Sub address n information
∼ * * * * * * * * ACK * * * * * * * * ACK ∼
Slave address n + 1 information
Sub address n + 2 information
Omitted * * * * * * * * ACK * * * * * * * * ACK P
Sub address n + 6 information
Sub address n + 7 information
No.A1709-65/68