sm59264 SyncMOS Technologies,Inc, sm59264 Datasheet - Page 19

• Manufacturer Part Number: sm59264
• Description: 8-bits Micro-controller With 128kb Flash & 1kb Ram & Twsi & Spwm Embedded
• Manufacturer: SyncMOS Technologies,Inc

WDTE : Watch Dog Timer enable bit
CLEAR : Watch Dog Timer reset bit
PS[2:0] : Overflow period select bits
Watch Dog Key Register - (WDTKEY, $97H)
By default, the WDTC is read only. User need to write values 1EH, E1H sequentially to the WDTKEY($97H) register to
enable the WDTC write attribute, That is
When WDTC is set, user need to write another values E1H, 1EH sequentially to the WDTKEY($97H) register to
disable the WDTC write attribute, That is
Watch Dog Timer Register - System Control Register (SCONF, $BF)
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M012 Ver B SM59264
Read / Write:
Read / Write:
Reset value:
Reset value:
Read / Write:
Reset value:
SyncMOS Technologies International, Inc.
KEY7
WDR
WDT
bit-7
bit-7
R/W
WDTE
W
0
0
bit-7
R/W
0
PS [2:0]
Unused
000
001
010
011
100
101
110
111
KEY6
WDT
Reserve
W
0
-
*
-
*
MOV WDTKEY, # 1EH
MOV WDTKEY, # 0E1H
MOV WDTKEY, # 0E1H
MOV WDTKEY, # 1EH
Unused
KEY5
WDT
W
Clear
0
-
*
R/W
0
with 128KB flash & 1KB RAM & TWSI & SPWM embedded
Unused
KEY4
WDT
19
Unused
W
0
*
-
-
*
Overflow Period (ms)
DFEN
KEY3
WDT
R/W
Unused
W
0
0
131.072
262.144
16.384
32.768
65.536
2.048
4.096
8.192
*
-
KEY2
WDT
ISPE
R/W
W
0
0
R/W
PS2
0
8-Bits Micro-controller
KEY1
WDT
OME
R/W
W
0
0
PS1
R/W
0
SM59264
KEY0
WDT
ALEI
bit-0
bit-0
R/W
05/2009
W
0
0
bit-0
PS0
R/W
0