tc9496af TOSHIBA Semiconductor CORPORATION, tc9496af Datasheet - Page 9

• Manufacturer Part Number: tc9496af
• Description: 1 Chip Audio Digital Signal Processor
• Manufacturer: TOSHIBA Semiconductor CORPORATION

2. Microcontroller interface
2.1
2.1.1 Setting Registers
Standard Transmission Mode
two bytes. Both command and data are sent starting from the MSB.
switched, such as the RUN-MUTE command (command-44h) or the IFF flag, must be synchronized
with the SYNC signal and loaded on that signal.
When I2CS = L, data can be transmitted or received in Standard Transmission mode.
When the CS signal is Low, control from the microcontroller is enabled.
The IFCK signal is the transmit/receive clock, the IFDI signal is the data.
The TC9496AF loads the IFDI data on the IFCK signal rising edge.
When CS = H, the IFCK and IFDI signals are don’t care.
The registers are set by command data using IFDI signal.
The first byte is a command, which differs for each register. The data sent after that are fixed to
Data are loaded the rising edge of the IFCK signal. Note that commands or data that must be
IFCK
IFDI
IFOK
CS
Don’t care
C7
C6
C5
C4
C3
C2
C1
C0
D15
D14
D13
D12
9
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
Cn: COMMAND
Dn: Data
D0
Don’t care
TC9496AF
2002-01-11