ACS8582 Semtech Corporation, ACS8582 Datasheet - Page 84

• Manufacturer Part Number: ACS8582
• Manufacturer: Semtech Corporation

Address (hex):
Revision 1.00/March 2008 ©Semtech Corp.
ADVANCED COMMS & SENSING
Register Name
Set to 0
Bit No.
Bit 7
[5:4]
[2:0]
7
6
3
65
cnfg_T0_DPLL_frequency
T4_APLL_for_
T0
Description
Set to 0
T4_APLL_for_T0
Register bit to select whether the T4 APLL takes its
input from the T4 DPLL or the T0 DPLL. If the T0
DPLL is selected then the frequency is controlled by
Bits [5:4], T0_freq_to_T4_APLL.
T0_freq_to_T4_APLL
Register to select the T0 frequency driven to the T4
APLL when selected by Bit 6, T4_APLL_for_T0.
Not used.
T0_DPLL_frequency
Register to configure the frequency of operation of
the DPLL/APLL in the T0 path. This register affects
the frequencies available at outputs O1 to O4, see
Reg. 60 - Reg. 63.
Bit 6
Bit 5
T0_freq_to_T4_APLL
Description
CONFIDENTIAL
Bit 4
FINAL
Page 84
(R/W) Register to configure the T0
DPLL and several other
parameters for the T0 path.
Bit Value
Bit 3
000
001
010
011
100
101
110
111
00
01
10
11
0
0
1
-
Value Description
Set to 0
T4 APLL takes its input from the T4 DPLL.
T4 APLL takes its input from the T0 DPLL.
12E1, T4 APLL frequency = 98.304 MHz.
16E1, T4 APLL frequency = 131.072 MHz.
24DS1, T4 APLL frequency = 148.224 MHz.
16DS1, T4 APLL frequency = 98.816 MHz.
-
77.76 MHz, digital feedback,
T0 APLL frequency = 311.04 MHz.
77.76 MHz, analog feedback,
T0 APLL frequency = 311.04 MHz.
12E1, T0 APLL frequency = 98.304 MHz.
16E1, T0 APLL frequency = 131.072 MHz.
24DS1, T0 APLL frequency = 148.224 MHz.
16DS1, T0 APLL frequency = 98.816 MHz.
Not used.
Not used.
Bit 2
T0_DPLL_frequency
Default Value
Bit 1
ACS8582
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0000 0001
Bit 0