參數(shù)資料
型號(hào)： SAA2502H
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： ISO/MPEG Audio Source Decoder
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP44
封裝： PLASTIC, SOT-307, QFP-44
文件頁數(shù)： 46/64頁
文件大?。?/td> 318K
代理商： SAA2502H
1997 Nov 17
46
Philips Semiconductors
Preliminary specification
ISO/MPEG Audio Source Decoder
SAA2502
8.1.2
E
XAMPLE OF A DATA TRANSFER
Fig.23 Example of transfer of 4 bytes.
handbook, full pagewidth
MGE485
L3 MODE
L3CLK
L3DATA
address
data
byte1
data
byte2
data
byte3
data
byte4
address
A data transfer starts when the microcontroller sends an
address on the bus. All ICs will evaluate this address, but
only the IC addressed will be an active partner for the
microcontroller in the following data transfer mode.
During the data transfer mode bytes will be sent from or to
the microcontroller. The L3MODE line is made LOW (‘halt
mode’) in between byte transfers. Only bytes should be
used as basic data transfer units.
After the data transfer the microcontroller does not need to
send a new address until a new data transfer is necessary.
8.1.3
T
IMING REQUIREMENTS
These are requirements for the slave devices designed in
accordance with the ‘L3’ interface definitions.
8.1.3.1
Addressing mode
Fig.24 Timing (addressing mode).
handbook, full pagewidth
MGB507
td1
h2
cL
t
cH
t
h1
t
su
t
t
L3CLK
L3MODE
L3DATA
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