C1853CT NEC, C1853CT Datasheet - Page 30

• Manufacturer Part Number: C1853CT
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• Manufacturer: NEC

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individually by each automatic increment ON/OFF bit. As for 00H, subaddress is not incremented automatically (see
4.1 Subaddress List).
is incremented from 01H to 02H automatically and is fixed on 02H.
after setting data of 08H (acknowledge bit: L), the acknowledge condition is changed into NAK state (acknowledge
bit: H). And the data transfer from the master CPU is stopped.
(9) Effect control
original signal can be adjusted in 16 levels.
(10) Monaural/Stereo selection
30
Subaddress
The automatic increment function increments subaddress automatically.
The automatic increment ON/OFF bit is in the subaddress 01H to 08H. The increment of subaddress is controlled
For example, when the automatic increment function of subaddress 01H is ON and that of 02H is OFF, subaddress
In case of the automatic increment function of 08H is ON, subaddress is not incremented. If next data is transferred
By the data of subaddress 08H, bit D3 to D0, the level of indirect sound signal (surround signal) added to the
By the data of subaddress 08H, bit D4, the surround mode can be selected (stereo mode or simulated mode).
Caution After power-on, be sure to initialize the subaddress data (see 4.2 Initialization).
Automatic increment function is ON : Subaddress is incremented automatically.
Automatic increment function is OFF: Subaddress is fixed.
Stereo mode
Simulated mode :
08H
Surround
ON/OFF
D7
:
Surround signal processing for stereo source.
The phase of the difference between L-channel and R-channel signals is shifted and
added to the original signal.
Stereo sound simulation for monaural source.
The phase of the difference between the signal through HPF and the signal through LPF
is shifted, and the signals are added to the original signal. When the output frequency
characteristics of L-channel and R-channel signals become the form of comb, stereo
sound simulation can be realized.
Automatic
increment
D6
Units of
phase
shifters
Fig. 4-9 Effect Control
If once slave address and subaddress are set, without setting the next
subaddress, data of the next subaddress can be transferred.
Data of the fixed subaddress can be set repeatedly.
D5
Monaural/
stereo
selection
D4
D3
Effect control
D2
D1
D3 ··· D0
Effect control
Data
1111
1000
0000
D0
Normal
Large
Small
Effect
PC1853