參數(shù)資料
型號(hào): CXD2721Q-1
廠商: Sony Corporation
元件分類: 數(shù)字信號(hào)處理
英文描述: Single-Chip Digital Signal Processor for Karaoke
中文描述: 單芯片數(shù)字信號(hào)處理器的卡拉OK
文件頁數(shù): 22/70頁
文件大?。?/td> 941K
代理商: CXD2721Q-1
– 22 –
CXD2721Q-1
(3) Data Structure
The data structure is classified into three types as shown in the table below. All data communication is
performed with LSB first.
Symbol
A0 to A7
M0 to M7
D0 to D15/SQ00 to SQ23
8
8
16/24
Address section
Transfer mode section
Data section
Coefficient RAM is 16 bits;
setup register is 24 bits
Bit length
Contents
Remarks
(3)-1. Transfer Mode Section
The transfer mode section is 8 bits and has the following functions.
Bit
M7
M6
M5
M4
M3
M2
M1
M0
0: ON (No sound)
1: OFF
VS1
0
1
VS0
0
0
Setup register (Setup Register)
Coefficient RAM (K-RAM)
0: Receive
1: Send
Note)
Polarity as seen from the CXD2721Q-1
XVMT
VS1
VS0
VRD
SO Mute
Reserve
Data type
Reserve
Receive/Send
Symbol
Function
(3)-2. Address Section
The coefficient RAM has a 192-word structure, so the address section is 8 bits. The setup register has a 1-
word structure, so the address section data may be optional.
(3)-3. Data Section
The coefficient RAM has a 16-bit structure (D0 to D15), so 16 SCK are required. The setup register has a 24-
bit structure (SQ00 to SQ23), so 24 SCK are required.
Table 5-2. Data Structure
Table 5-3. Transfer Mode Section
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