tc9446f TOSHIBA Semiconductor CORPORATION, tc9446f Datasheet - Page 7

• Manufacturer Part Number: tc9446f
• Description: Audio Digital Processor For Decode Of Dolby Digital Ac-3 , Mpeg2 Audio -
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Description of Operation
1. Micro Controller Interface
MIDIO
MIACK
Note 5: MIDIO terminal needs pull-up resistance for the terminal exterior because of an open-drain output.
Note 6: The addresses of an I
MICS
MILP
MICK
Bit Assign
Terminal
mode or the I
are performed at MSB first.
Note 4: This data sheet shows the general control method, refer to the program explanation data of an
Table 1 Use Terminal and Function in the Serial Mode and the I
23-8
3-0
7
6
5
4
The TC9446F can perform transmission and reception of serial data with a micro controller in the serial
MIMD terminal performs a change in the serial mode and the I
The use terminal and the function in the serial mode and the I
The bit composition of a 24 bit command is shown in Table 2.
When using it by I
Transmission Mode
attached sheet for a detailed command list, the control method, etc.
Input (3-5 V)
Input (3-5 V)
Input (3-5 V)/Output (3 V)
Input (3-5 V)
Output (3 V)
16 bit address
Starting the incorrect operation detection output
Starting the program RAM boot
Setting the soft reset
Setting the Read/Write (R/W)
Setting the number of words for transmission
2
C mode.
Input/Output
Table 2 Bit Composition of 24 Bit Command
2
C bus, pull-up resistance is required also for MICK terminal.
2
C bus are write-in address 3Ah and read-out address 3Bh.
Functions
Chip selection signal input
Latch pulse signal input
Data input/output
Clock input
Acknowledge signal output and out of
control detection output
Serial Mode (MIMD = L)
7
Functions
Refer to the command list of the program explanation
data sheet
Starting the incorrect operation detection output by “1”
Starting the program RAM boot by “1”
Setting the soft reset ON by “1”
Setting the read by “1”
“0h”; a word
“Fh”; 16 words
↓
2
2
C mode are shown in Table 1.
C mode, and input and output of data
Not used (fixed “L”)
Not used (fixed “L”)
Data input/output (SDA)
Clock input (SCL)
Out of control detection output
Remarks
I
2
C Mode (MIMD = H)
Functions
2
C Mode
2002-04-18
TC9446F