tc94a48fg TOSHIBA Semiconductor CORPORATION, tc94a48fg Datasheet - Page 13

• Manufacturer Part Number: tc94a48fg
• Description: Single-chip Audio Digital Signal Processor Single-chip Audio Digital Signal Processor
• Manufacturer: TOSHIBA Semiconductor CORPORATION

2.
Note 6: This data sheet shows general control methods. Refer to the separate program explanation data sheet for a
Note 7: The input High voltage for these pins should be V
Note 8: The open-drain /MIDIO and /MIACK pins require external pull-up resistors.
Note9: The I
Table 1 Pins Used and Features Supported in Normal Transmission Mode and I
Microcontroller Interface
The TC94A48FG can exchange data with a microcontroller in either normal transmission mode or I
mode. It uses the MIMD pin to select the mode and inputs/outputs data in MSB-first format.
Table 1 shows the features supported and the pins used in each mode.
Table 2 shows the bit composition of a 24-bit command.
complete command list or detailed description of control methods.
/MICS
MILP
/MIDIO
/MICK
/MIACK
In I
The pulled-up voltage for these pins should be V
2
C mode, the /MICK pin also requires a pull-up resistor.
2
Pin
C bus write address is 30 h and read address is 31h.
23-8
Transmission Mode
3-0
Bit
7
6
5
4
Input
Input
Input
Output (open-drain)
Input, Input / Output (I
Output (open-drain)
Table 2 Bit Composition of a 24-bit Command
16-bit address
Not used
Start program RAM boot
Specify soft reset
Specify read or write (R/W)
Set the number of words to be
transmitted
Input/Output
Function
2
C mode)
Normal Transmission Mode (MIMD=L)
Chip select Input
Latch pulse input
Data input / output
Clock input
Acknowledge output
13
DD
DD
-0.2V to 5.5V.
-0.2 V to 5.5V.
Refer to the command list in the
program explanation data sheet.
"1" starts program RAM boot.
"1" triggers a soft reset.
"1" specifies a read.
0h” ; 1word
“7h” ; 8words
Function
↓
Remarks
―
Not used (fixed to “L”)
Not used (fixed to “L”)
Data input / output (SDA)
Clock input (SCL)
Not used
I
2
C Mode (MIMD=H)
TC94A48FG
Function
2005-09-28
2
C Mode
2
C