參數(shù)資料
型號(hào): UDA1384
廠商: NXP Semiconductors N.V.
英文描述: Multichannel audio coder-decoder
中文描述: 多聲道音頻編碼解碼器
文件頁數(shù): 16/55頁
文件大?。?/td> 276K
代理商: UDA1384
9397 750 14366
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 — 17 January 2005
16 of 55
Philips Semiconductors
UDA1384
Multichannel audio coder-decoder
The data transfer mode is characterized by signal L3MODE = HIGH and is used to
transfer one or more bytes representing a register address, instruction or data.
Basically, two types of data transfers can be defined:
Write action: data transfer
to
the device
Read action: data transfer
from
the device.
9.2 Device addressing
The device address consists of one byte with:
Data Operating Mode (DOM) bits 0 and 1 representing the type of data transfer (see
Table 13
)
Address bits 2 to 7 representing a 6-bit device address. The address of the UDA1384
is 01 0100 (bits 2 to 7).
9.3 Register addressing
After sending the device address (including DOM bits), indicating whether the information
is to be read or written, one data byte is sent using bit 0 to indicate whether the
information will be read or written and bits 1 to 7 for the destination register address.
Basically, there are 3 methods for register addressing:
1. Addressing for write data: bit 0 is logic 0 indicating a write action to the destination
register, followed by bits 1 to 7 indicating the register address (see
Figure 11
).
2. Addressing for prepare read: bit is logic 1, indicating that data will be read from the
register (see
Figure 12
).
3. Addressing for data read action. Here, the device returns a register address prior to
sending data from that register. When bit 0 is logic 0, the register address is valid;
when bit 0 is logic 1, the register address is invalid (see
Figure 12
).
Table 13:
DOM
Selection of data transfer
Transfer
Bit 1
0
0
1
1
Bit 0
0
1
0
1
not used
not used
write data or prepare read
read data
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