fs6377 AMI Semiconductor, Inc., fs6377 Datasheet - Page 11

• Manufacturer Part Number: fs6377
• Description: Fs6377-01g Programmable 3-pll Clock Generator Ic
• Manufacturer: AMI Semiconductor, Inc.

FS6377-01x Programmable 3-PLL Clock Generator IC
6.2 Power-Down
All power-down functions are controlled by enable bits. The bits select which portions of the device to power-down when the PD input is
asserted.
Table 4: Power-Down Bits
Table 5: Divider Control Bits
Name
PDPLL_A
(Bit 21)
PDLL_B
(Bit 45)
PDLL_C
(Bit 69)
Reserved (0)
(Bit 69)
PDPOSTA
(Bit 120)
PDPOSTB
(Bit 121)
PDPOSTC
(Bit 122)
PDPOSTD
(Bit 123)
Name
REFDIV_A[7:0]
(Bits 7-0)
REFDIV_B[7:0]
(Bits 31-24)
REFDIV_C1[7:0]
(Bits 55-48)
REFDIV_C2[7:0]
(Bits 79-72)
FBKDIV_A[10:0]
(Bits 18-8)
FBKDIV_B[10:0]
(Bits 42-32)
FBKDIV_C1[10:0]
(Bits 66-56)
FBKDIV_C2[10:0]
(Bits 90-80)
AMI Semiconductor
www.amis.com
Description
Power-Down PLL A
Bit = 0
Bit = 1
Power-Down PLL B
Bit = 0
Bit = 1
Power-Down PLL C
Bit = 0
Bit = 1
Set these reserved bits to zero (0)
Power-Down POST Divider A
Bit = 0
Bit = 1
Power-Down POST Divider B
Bit = 0
Bit = 1
Power-Down POST Divider C
Bit = 0
Bit = 1
Power-Down POST Divider D
Bit = 0
Bit = 1
Description
Reference Divider A (N
Reference Divider B (N
Reference Divider C1 (N
selected when the SEL_CD pin = 0
Reference Divider C2 (N
selected when the SEL_CD pin = 1
Feedback Divider A (N
FBKDIV_A[2:0]
FBKDIV_A[10:3]
Feedback Divider B (N
FBKDIV_B[2:0]
FBKDIV_B[10:3]
Feedback Divider C1 (N
selected when the SEL_CD pin = 0
FBKDIV_C1[2:0]
FBKDIV_C1[10:3]
Feedback Divider C2 (N
selected when the SEL_CD pin = 1
FBKDIV_C2[2:0]
FBKDIV_C2[10:3]
Specifications subject to change without notice
– Oct., 2007 – Rev. 3.0
Power on
Power off
Power on
Power off
Power on
Power off
Power on
Power off
Power on
Power off
Power on
Power off
Power on
Power off
A-Counter value
M-Counter value
A-Counter value
M-Counter value
A-Counter value
M-Counter value
A-Counter value
M-Counter value
R
R
F
F
)
)
R
R
)
)
F
F
)
)
)
)
11
Data Sheet