4283 Group
SEAM (Skip Equal, Accumulator with Memory)
Instrunction D8
D0
Number of Number of Flag CY
Skip condition
(A) = (M(DP))
words
cycles
code
0
0
0
1
0
0
1
1
0
0
2
6
16
2
1
1
–
Operation:
(A) = (M(DP)) ?
Grouping:
Comparison operation
Description: Skips the next instruction when the con-
tents of register A is equal to the contents of
M(DP).
SNZP (Skip if Non Zero condition of Power down flag)
Number of Number of
Flag CY
–
Skip condition
(P) = 1
Instrunction D8
D0
words
cycles
code
0
0
0
0
0
0
0
1
1
0
0
3
16
2
1
1
Operation:
(P) = 1 ?
Grouping:
Other operation
Description: Skips the next instruction when P flag is “1”.
After skipping, P flag remains unchanged.
SNZT1 (Skip if Non Zero condition of Timer 1 underflow flag)
Number of Flag CY
cycles
Instrunction D8
D0
Number of
words
Skip condition
(T1F) = 1
code
0
0
1
0
0
0
0
1
0
0
4
2
16
2
1
1
–
Operation:
(T1F) = 1 ?
Grouping:
Timer operation
(T1F) ← 0
Description: Clears T1F flag and skips the next instruc-
tion when the contents of T1F flag is “1.”
SNZT2 (Skip if Non Zero condition of Timer 2 inerrupt request flag)
Instrunction D8
D0
Number of Number of Flag CY
Skip condition
(T2F) = 1
words
cycles
code
0
0
1
0
1
0
0
1
0
0
5
2
16
2
1
1
–
Operation:
(T2F) = 1 ?
Grouping:
Timer operation
(T2F) ← 0
Description: Clears T2F flag and skips the next instruc-
tion when the contents of T2F flag is “1.”
Rev.1.01 Mar 20, 2006 page 38 of 62
REJ03B0109-0101
RENESAS [ RENESAS TECHNOLOGY CORP ]
