
Rev.1.02
Nov 26, 2008
REJ03B0224-0102
455A Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
T2HAB
(Transfer data to register R2H from Accumulator and register B)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
1
0
1
001
01
00 2 29 4 16
11
-
Opera-
tion:
(R2H7
R2H4) ← (B)
(R2H3
R2H0) ← (A)
Grouping:
Timer operation
Description: Transfers the contents of register B to the high-order 4 bits
of timer 2 and timer 2 reload register R2H. Transfers the
contents of register A to the low-order 4 bits of timer 2 and
timer 2 reload register R2H.
T2R2L
(Transfer data to timer 2 from register R2L)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
1
0
1
001
01
01 2 29 5 16
11
-
Opera-
tion:
(T27
T20) ← (R2L7R2L0)
Grouping:
Timer operation
Description: Transfers the contents of reload register R2L to timer 2.
TAB
(Transfer data to Accumulator from register B)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
0
001
11
10 2 01 E 16
11
-
Opera-
tion:
(A)
← (B)
Grouping:
Register to register transfer
Description: Transfers the contents of register B to register A.
TAB1
(Transfer data to Accumulator and register B from timer 1)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
1
0
111
00
00 2 27 0 16
11
-
Opera-
tion:
(B)
← (T17T14)
(A)
← (T13T10)
Grouping:
Timer operation
Description: Transfers the high-order 4 bits (T17
T14) of timer 1 to reg-
ister B.
Transfers the low-order 4 bits (T13
T10) of timer 1 to regis-
ter A.