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CX20431-21 参数 Datasheet PDF下载

CX20431-21图片预览
型号: CX20431-21
PDF下载: 下载PDF文件 查看货源
内容描述: AccessRunner ADSL -USB调制解调器设备设置 [AccessRunner ADSL-USB Modem Device Set]
分类和应用: 调制解调器
文件页数/大小: 56 页 / 363 K
品牌: CONEXANT [ CONEXANT SYSTEMS, INC ]
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AccessRunner ADSL-USB Modem Device Set Data Sheet  
Table 3-7. CX11627 ADDP Hardware Signal Definitions (Continued)  
Signal Name  
Pin  
I/O  
I/O Type  
Signal Name/Description  
P5200 UIC CONTROL  
Reset. Active low control input. When asserted, the ADDP is held in a  
reset state. Connect to UIC RST# (GPIO09).  
RSTB  
85  
83  
82  
79  
I
I
Interrupt Request 1. Active high interrupt asserted to request service  
by the UIC. Connect to UIC IRQ0 (GPIO10).  
IRQ1  
O
O
I
Ot  
Ot  
I
Interrupt Request 2. Active high interrupt asserted to request service  
by the UIC. Connect to UIC IRQ1 (GPIO11).  
IRQ2  
Power Down. Active high control input When asserted, the ADDP is  
PWR_DN  
held in a low power mode. Connect to UIC PD (GPIO12).  
Scan Mode. Connect to UIC SCANMODE (GPIO26).  
SSCANMODE  
TLXCK_EN  
55  
22  
I
I
I
I
LSX Transmit Data Clock Generation Enable. Connect to +3.3V.  
P5200 UIC SERIAL INTERFACE  
TC0 Block Receive Start of Cell. Connect to UIC RXSOC0.  
RXSOC0  
45  
41  
39  
11  
15  
12  
21  
O
O
O
I
O
O
O
I
Receive Data (AS0). Connect to UIC RDATAS0.  
R_DAT_AS0  
R_NCO_AS0  
T_CLK_AS1  
T_CLK_LS0  
T_DAT_LS0  
TXSOC0  
Receive NCO (AS0). Connect to UIC RCLKAS0.  
Transmit Data Clock (AS1). Connect to ADDP NCO_AS0.  
Transmit Data Clock (LS0). Connect to UIC TCLKLS0.  
Transmit Data (LS0). Connect to UIC TDATLS0.  
TC0 Block Transmit Start of Cell. Connect to UIC TXSOC0.  
I/O  
I/O  
I
I
I
I
MONITOR INTERFACE  
Monitor Output. 1-bit serial D/A output used for constellation  
monitoring. Used for test only; leave open during normal operation.  
MON_OUT  
MON_CLK  
MON_DONE  
77  
78  
67  
O
O
O
O
O
O
Monitor Clock. Serial monitor 138 kHz clock output. Used for test  
only; leave open during normal operation.  
Monitor Done. New symbol constellation qualifier. Used for test only;  
leave open during normal operation.  
POWER AND GROUND  
Core Circuits Supply Voltage. Connect to +2.5V supply.  
Input/Output Circuits Supply Voltage. Connect to +3.3V supply.  
Core Circuits Ground. Connect to digital ground.  
VDDcore  
VDDO  
VSS  
25, 26, 59, 60, 61,  
70, 71, 93, 108,  
109, 134, 140,  
154, 155  
P
P
G
PWR  
PWR  
GND  
10, 27, 36, 54, 69,  
76, 89, 110, 122,  
132, 156, 168,  
176  
19, 20, 53, 62, 63,  
72, 73, 74, 92,  
105, 106, 131,  
139, 151, 152,  
175  
Input/Output Circuits Ground. Connect to digital ground.  
VSSO  
VGG  
1, 9, 18, 28, 35,  
52, 64, 75, 88,  
107, 121, 133,  
153, 167  
G
R
GND  
R
Input Reference Voltage. Reference voltage for +5V tolerant input  
pins. A connection to +5V allows +5V or +3.3V input levels. A  
connection to +3.3V allows +3.3V input levels only.  
103  
3-14  
Conexant  
100427B  
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