參數(shù)資料
型號: SAA2023H
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: RES 4.53K OHM 1/16W 0.5% 0402SMD
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP80
封裝: 12 X 12 MM, 1.40 MM HEIGHT, PLASTIC, SOT-315-1, TQFP-80
文件頁數(shù): 16/56頁
文件大小: 274K
代理商: SAA2023H
May 1994
16
Philips Semiconductors
Preliminary specification
Drive processor for DCC systems
SAA2023
URDA
This active HIGH output pin indicates that the main data
(audio), the SYSINFO and the AUXILIARY data are NOT
usable, regardless of the state of the corresponding
reliability flags. The state of this pin is reflected in the
URDA bit of STATUS byte 0, which can be read by the
microcontroller. This pin should be connected directly to
the URDA pin of the SAA2003. URDA goes active as a
result of a reset, a mode change from mode DRAR to
DPAP, or if the SAA2023 has had to re-synchronize with
the incoming data from tape.
The position of the first sub-band serial PASC bytes in a
tape frame is shown in Figs 8 and 9.
Fig.8 Position of first sub-band serial PASC bytes in a tape frame in DPAP/DPAR mode.
handbook, full pagewidth
SNUM
SBWS
'FIRST BYTE"
SBDA
byte 0
byte 1
byte 2
0
1
L3REF
MGB384
handbook, full pagewidth
SNUM
SBWS
'FIRST BYTE'
SBDA
byte 0
byte 1
byte 2
3
0
L3REF
MGB385
Fig.9 Position of first sub-band serial PASC bytes in a tape frame in DRAR mode.
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