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參數(shù)資料
| 型號(hào)： | KD16901 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | Audio Effect Processor(音頻效果處理器) |
| 中文描述： | 音頻效果器（音頻效果處理器） |
| 文件頁數(shù)： | 17/68頁 |
| 文件大?。?/td> | 381K |
| 代理商： | KD16901 |
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AUDIO EFFECT PROCESSOR
HARDWARE DESCRIPTION
2-17
Host Interface Unit (HIU)
The KD16901 receives commands and parameters in serial format from microcontroller through built-in HIU. The
data must be in byte unit (8 bit). The host commands are composed of the following three types.
Command Only
Command followed by Parameter
Command followed by Parameter #1 (high byte) followed by Parameter #2 (low byte)
The details on commands used in the KD16901 can be found in Chapter 4.
The HIU supports either normal microcontroller interface or I
2
C bus interface. In normal host interface, the related
pins are HCLK (Normal Host Interface Bit Clock), HWEB (Normal Host Interface Write Enable) and HDATA
(Normal Host Interface Data In/Out). In I
2
C bus interface, the related pins are SDA (Serial Data Line), SCL (Serial
Clock Line) and SAS (I
2
C Bus Interface Programmable Slave Address Selection). One can refer to I
2
C Bus
Specification by Philips. The I
2
C bus interface in the KD16901 operates in Slave-Transmitter mode. The other
function of HIU is the spectrum request function. The spectrum value is sent to microcontroller. The maximum bit
clock (HCLK or SCL) is 400 KHz.
Figure 6. Data Format in Normal Host Interface
Figure 7. Data Format in Normal Host Interface-Spectrum Request
From Micom
MSB
HWEB
HDATA
HCLK
MSB
From Micom
MSB
From Micom
Write Operation(Command)
Write Operation(Command)
2-Byte Operation
1-Byte Operation
Processing Operation
Write Operation(Data)
Processing Operation
From Micom
MSB
HWEB
HDATA
HCLK
MSB
From DSP
MSB
From Micom
Write Operation
Read Operation
Other Write Operation
Spectrum Request Operation
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