参数资料
型号: WLA49VVA
厂商: National Semiconductor Corporation
元件分类: ADC
英文描述: Audio Sub-System with Dual-Mode Stereo Headphone and Mono High Efficiency Loudspeaker Amplifiers and Multi-Purpose ADC
中文描述: 音频子系统的双模单声道立体声耳机和扬声器放大器的高效率和多功能模数转换器
文件页数: 75/112页
文件大小: 5017K
代理商: WLA49VVA
12.0 Status & Control Registers (Continued)
12.41 SAR TRIGGER 2 CONFIGURATION REGISTER
This register is used to setup a voltage trigger on one of the SAR outputs.
TABLE 42. TRIG_2 (0x24h)
Bits
Field
Description
0
TRIG_2_ENB
Enables the 2nd SAR trigger interrupt, if cleared will clear the IRQ.
1
TRIG_2_DIR
Selects the direction the voltage should be moving:
TRIG_2_DIR
Trigger if signal passes:
0
Above Threshold
1
Below Threshold
3:2
TRIG_2_SOURCE
Programs the channel used by the trigger
TRIG_2_SOURCE
Source
00
2
VSAR_1
01
2
VSAR_2
10
2
D_V
DD/2 or BB_VDD
11
2
A_V
DD/2
7:4
TRIG_2_LSB
Sets bits 3:0 of the threshold used by the trigger.
LM4935
www.national.com
65
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