CY28325PVC-2 Cypress Semiconductor Corp., CY28325PVC-2 Datasheet - Page 11

• Manufacturer Part Number: CY28325PVC-2
• Description: Frequency Timing Generators For PC And Server Motherboards
• Manufacturer: Cypress Semiconductor Corp.

Data Byte 14 (continued)
Data Byte 15
Data Byte 16
Data Byte 17
Document #: 38-07119 Rev. *A
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit
Bit
Bit
Bit
Pin#
Pin#
Pin#
Pin#
11
10
–
–
–
–
–
–
–
1
7
8
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
CPU_FSEL_M6
CPU_FSEL_M5
CPU_FSEL_M4
CPU_FSEL_M3
CPU_FSEL_M2
CPU_FSEL_M1
CPU_FSEL_M0
Latched FS4 input
Latched FS3 input
Latched FS2 input
Latched FS1 input
Latched FS0 input
Reserved
Vendor Test Mode
Vendor Test Mode
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Name
Name
Name
Name
PRELIMINARY
If Prog_Freq_EN is set, the values programmed in
CPU_FSEL_N[7:0] and CPU_FSEL_M[6:0] will be used
to determine the CPU output frequency. The new
frequency will start to load whenever CPU_FSELM[6:0] is
updated. The setting of FS_Override bit determines the
frequency ratio for CPU and other output clocks. When it
is cleared, the same frequency ratio stated in the Latched
FS[4:0] register will be used. When it is set, the frequency
ratio stated in the SEL[4:0] register will be used.
Latched FS[4:0] inputs. These bits are Read-only.
Reserved
Reserved. Write with “1”
Reserved. Write with “1”
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Pin Description
Pin Description
Pin Description
Pin Description
CY28325-2
Page 11 of 19
Power-on
Power-on
Power-on
Power-on
Default
Default
Default
Default
X
X
X
X
X
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0