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參數(shù)資料
| 型號： | PCT789T-A |
| 英文描述： | PCI HSP56 World MicroModem/PCT303DW/PCT1789W |
| 中文描述： | 世界MicroModem/PCT303DW/PCT1789W的PCI HSP56 |
| 文件頁數(shù)： | 43/70頁 |
| 文件大小： | 872K |
| 代理商： | PCT789T-A |
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PC-TEL, Inc.
43
1789W0DOCDAT06A-0299
PCT1789W DATA SHEET
PCT303DW C
ONTROL
R
EGISTERS
!
PRELIMINARY
PRELIMINARY
DAA Control 2
(Register 6, R/W)
Reset settings: 70h
Bit Definitions:
PLL1 Divide N1
(Register 7, R/W)
Reset settings: 00h (serial mode 0, 1, 2)
Bit Definitions:
CPE
7
ATM1
6
ARM1
5
PDL
4
PDN
3
Reserved
2
ATM0
1
ARM0
0
Bits
Name
CPE
Description
Charge pump enable.
1 = Charge pump on.
0 = Charge pump off.
AOUT transmit path level control.
7
6,1
ATM[1:0]
5,0
ARM[1:0]
AOUT receive path level control.
4
PDL
Power down line-side chip.
1 = Places the PCT303W in lower power mode.
0 = Normal operation. Program the clock generator before clearing this bit.
Power down. 1 = Powers down the PCT303DW. A reset pulse on RESET is
required to restore normal operation.
Reserved. Read returns zero.
3
PDN
2
Reserved
Divider N1
7
6
5
4
3
2
1
0
ATM[1:0]
00
01
10
11
Description
–20dB transmit path attenuation for call progress AOUT pin only.
–32dB transmit path attenuation for call progress AOUT pin only.
Mutes transmit path for call progress AOUT pin only.
–26dB transmit path attenuation for call progress AOUT pin only.
ARM[1:0]
00
01
10
11
Description
0dB receive path attenuation for call progress AOUT pin only.
–12dB receive path attenuation for call progress AOUT pin only.
Mutes receive path for call progress AOUT pin only.
–6dB receive path attenuation for call progress AOUT pin only.
Bits
Name
Divider N1
Description
Contains the (value – 1) for determining the output frequency on PLL1.
7:0
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