CY28341-2
Byte 5: SDR/DDR Clock Register
Bit @Pup Pin# Name
Description
7
0
45 BUF_IN threshold voltage DDR Mode, BUF_IN threshold setting. 0 = 1.15V, 1 = 1.05VSDR Mode, BUF_IN
threshold setting. 0 = 1.35V, 1 = 1.25V
6
5
4
3
2
1
0
1
1
1
1
1
1
1
46
FBOUT
1 = Output enabled (running). 0 = Output disabled asynchronously in a low state.
29,30 DDRT/C5/SDRAM(10,11) 1 = Output enabled (running). 0 = Output disabled asynchronously in a low state.
31,32 DDRT/C4/SDRAM(8,9) 1 = Output enabled (running). 0 = Output disabled asynchronously in a low state.
35,36 DDRT/C3/SDRAM(6,7) 1 = Output enabled (running). 0 = Output disabled asynchronously in a low state.
37,38 DDRT/C2/SDRAM(4,5) 1 = Output enabled (running). 0 = Output disabled asynchronously in a low state.
41,42 DDRT/C1/SDRAM(2,3) 1 = Output enabled (running). 0 = Output disabled asynchronously in a low state.
43,44 DDRT/C0/SDRAM(0,1) 1 = Output enabled (running). 0 = Output disabled asynchronously in a low state.
Byte 6: Watchdog Register
Bit @Pup Pin# Name
SRESET#
Description
7
6
0
0
26
1 = Pin 26 is the input pin as PD# signal. 0 = Pin 26 is the output pin as SRESET#
signal.
Frequency Revert 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).
5
4
0
0
WDTEST
WD Alarm
For IMI Test - WD-Test, ALWAYS program to '0'
This bit is set to “1” when the Watchdog times out. It is reset to “0” when the system
clears the WD time stamps (WD3:0).
3
2
1
0
0
0
0
0
WD3
WD2
WD1
WD0
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
Table 7. Watchdog Time Stamp
WD3
0
WD2
0
WD1
0
WD0
0
FUNCTION
Off
0
0
0
1
1 second
0
0
1
0
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
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
1
1
1
Byte 7: Dial-a-Frequency Control Register N
Bit @Pup Pin# Name
Description
Rev 1.0,November 21, 2006
Page 7 of 18
SPECTRALINEAR [ SPECTRALINEAR INC ]
