CY28341 Cypress Semiconductor, CY28341 Datasheet - Page 7

• Manufacturer Part Number: CY28341
• Description: Universal Single-Chip Clock Solution
• Manufacturer: Cypress Semiconductor

Document #: 38-07367 Rev. *A
Byte 5: SDR/DDR Clock Register
Byte 6: Watchdog Register
Table 7. Watchdog Time Stamp
Bit @Pup Pin#
Bit
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
WD3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
@Pup
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
26
29,30
31,32
35,36
37,38
41,42
43,44
Pin#
WD2
Frequency
SRESET# 1 = Pin 26 is the input pin as PD# signal. 0 = Pin 26 is the output pin as SRESET# signal.
WD Alarm This bit is set to “1” when the Watchdog times out. It is reset to “0” when the system clears the
45
46
WDTEST WD-Test, ALWAYS program to “0.”
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Revert
Name
WD3
WD2
WD1
WD0
DDRT/C5/SD
DDRT/C4/SD
DDRT/C3/SD
DDRT/C2/SD
DDRT/C1/SD
DDRT/C0/SD
RAM(10,11)
RAM(8,9)
RAM(6,7)
RAM(4,5)
RAM(2,3)
RAM(0,1)
threshold
BUF_IN
FBOUT
voltage
Name
This bit allows setting the Revert Frequency once the system is rebooted due to Watchdog time
out only.0 = selects frequency of existing H/W setting1 = selects frequency of the second to
last S/W setting (the software setting prior to the one that caused a system reboot).
WD time stamps (WD3:0).
This bit allows the selection of the time stamp for the Watchdog timer. See Table 7.
This bit allows the selection of the time stamp for the Watchdog timer. See Table 7.
This bit allows the selection of the time stamp for the Watchdog timer. See Table 7.
This bit allows the selection of the time stamp for the Watchdog timer. See Table 7.
WD1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
DDR Mode, BUF_IN threshold setting. 0 = 1.15V, 1 = 1.05VSDR Mode, BUF_IN
threshold setting. 0 = 1.35V, 1 = 1.25V
1 = output enabled (running). 0 = output disabled asynchronously in a LOW state.
1 = output enabled (running). 0 = output disabled asynchronously in a LOW state.
1 = output enabled (running). 0 = output disabled asynchronously in a LOW state.
1 = output enabled (running). 0 = output disabled asynchronously in a LOW state.
1 = output enabled (running). 0 = output disabled asynchronously in a LOW state.
1 = output enabled (running). 0 = output disabled asynchronously in a LOW state.
1 = output enabled (running). 0 = output disabled asynchronously in a LOW state.
WD0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Off
1 second
2 seconds
3 seconds
4 seconds
5 seconds
6 seconds
7 seconds
8 seconds
9 seconds
10 seconds
11 seconds
12 seconds
13 seconds
14 seconds
15 seconds
Description
Description
FUNCTION
CY28341
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