CY28435OXCT SPECTRALINEAR [SpectraLinear Inc], CY28435OXCT Datasheet - Page 8

• Manufacturer Part Number: CY28435OXCT
• Description: Clock Generator for Intel Grantsdale Chipset
• Manufacturer: SPECTRALINEAR [SpectraLinear Inc]

Rev 1.0, November 20, 2006
Byte 8: Control Register 8 (continued)
Byte 9: Control Register 9
Byte 10: Control Register 10
Bit
Bit
Bit
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
@Pup
@Pup
@Pup
1
1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
Recovery_Frequency
WD_TIMER2
WD_TIMER1
WD_TIMER0
RESERVED
Time_Scale
Timer_SEL
WD_Alarm
DF_Limit2
DF_Limit1
DF_Limit0
FSEL_D
FSEL_C
FSEL_B
FSEL_A
WD_EN
DF_EN
Name
Name
Name
USB
PCI
48-MHz Output Drive Strength
0 = 2x, 1 = 1x
33-MHz Output Drive Strength
0 = 2x, 1 = 1x
RESERVED, Set = 0
Dynamic Frequency Max threshold. These three bits will set the max
allowed CPU frequency for Dynamic Frequency
Dynamic Frequency Enable
0 = Disable, 1 = Enable
SW Frequency selection bits. See Table 1.
This bit allows selection of the frequency setting that the clock will be
restored to once the system is rebooted
0: Use HW settings, 1: Recovery N[8:0]
Timer_SEL selects the WD reset function at SRESET pin when WD time
out.
0 = Reset and Reload Recovery_Frequency
1 = Only Reset
Time_Scale allows selection of WD time scale
0 = 294 ms
WD_Alarm is set to “1” when the watchdog times out. It is reset to “0” when
the system clears the WD_TIMER time stamp.
Watchdog timer time stamp selection
000: Reserved (test mode)
001: 1 * Time_Scale
010: 2 * Time_Scale
011: 3 * Time_Scale
100: 4 * Time_Scale
101: 5 * Time_Scale
110: 6 * Time_Scale
111: 7 * Time_Scale
Watchdog timer enable, when the bit is asserted, Watchdog timer is
triggered and time stamp of WD_Timer is loaded
0 = Disable, 1 = Enable
1 = 2.34 s
Description
Description
Description
CY28435
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