參數(shù)資料
型號(hào): SAA7348GP
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: All Compact Disc Engine ACE
中文描述: 8-BIT, MROM, 35 MHz, MICROCONTROLLER, PQFP100
文件頁(yè)數(shù): 29/60頁(yè)
文件大小: 205K
代理商: SAA7348GP
1997 Jul 11
29
Philips Semiconductors
Preliminary specification
All Compact Disc Engine (ACE)
SAA7348GP
8.1.7
D
ECODER
S
TATUS
R
EGISTER
(DSR)
The decoder status register provides decoder status information. The register is byte addressable; read only.
Table 20
Decoder status register (address 0XEBH)
Table 21
Description of DSR bits
7
6
5
4
3
2
1
0
Decoder_stat.7 TX_full Dec_motov Dec_pll_flock Dec_pll_lock Dec_motstop Dec_motstart_2 Dec_motstart_1
BIT
SYMBOL
DESCRIPTION
7
6
5
4
3
2
1
0
Decoder_stat.7
TX_full
Dec_motov
Dec_pll_flock
Dec_pll_lock
Dec_motstop
Dec_motstart_2
Dec_motstart_1
communication buffer to decoder is full
motor-overflow: decoder status signal; motor output saturates
PLL_flock: decoder internal signal; can be forced by
μ
P
PLL_lock: decoder internal signal; can be forced by
μ
P
motstop: decoder status signal; speed <12%
motstart 2: decoder status signal; speed >50%
motstart 1: decoder status signal; speed >75%
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