User’s Manual
C166S V1 SubSystem
Detailed Instruction Set
User’s Manual
6-91
V 1.6, 2001-08
SRVWDT
Service Watchdog Timer
SRVWDT
Group
System Control Instructions
Syntax
SRVWDT
Source Operand(s)
none
Destination Operand(s)
none
Operation
Service Watchdog Timer
Description
This instruction reloads the high order byte of the Watchdog Timer with a preset value
and clears the low byte. Once this instruction has been executed, the watchdog timer
cannot be disabled. To insure that this instruction is not accidentally executed, it is
implemented as a protected instruction.
CPU Flags
E
Not affected.
Z
Not affected.
V
Not affected.
C
Not affected.
N
Not affected.
Encoding
E
Z
V
C
N
-
-
-
-
-
Mnemonic
Format
Bytes
SRVWDT
A7 58 A7 A7
4
Содержание C166S V1 SubSystem
Страница 10: ...User s Manual C166S V1 SubSystem User s Manual I 6 V 1 6 2001 08...
Страница 16: ...User s Manual C166S V1 SubSystem Introduction User s Manual 1 6 V 1 6 2001 08...
Страница 126: ...User s Manual C166S V1 SubSystem Central Processing Unit User s Manual 3 96 V 1 6 2001 08...
Страница 178: ...User s Manual C166S V1 SubSystem Memory Organization User s Manual 4 52 V 1 6 2001 08...
Страница 206: ...User s Manual C166S V1 SubSystem Instruction Set User s Manual 5 28 V 1 6 2001 08...
Страница 306: ...User s Manual C166S V1 SubSystem Detailed Instruction Set User s Manual 6 100 V 1 6 2001 08...
Страница 362: ...User s Manual C166S V1 SubSystem The External Bus Interface User s Manual 8 40 V 1 6 2001 08...
Страница 452: ...User s Manual C166S V1 SubSystem General Purpose Timer Unit User s Manual 12 44 V 1 6 2001 08...
Страница 454: ...User s Manual C166S V1 SubSystem Instruction Index User s Manual 13 2 V 1 6 2001 08...
Страница 459: ......