CHAPTER 22 INSTRUCTION SET
Preliminary User’s Manual U16846EJ1V0UD
367
Clocks Flag
Instruction
Group
Mnemonic Operands Bytes
Note 1
Note 2
Operation
Z AC CY
saddr.bit, $addr16
3
8
9
PC
←
PC + 3 + jdisp8 if (saddr.bit) = 1
sfr.bit, $addr16
4
−
11 PC
←
PC + 4 + jdisp8 if sfr.bit = 1
A.bit, $addr16
3
8
−
PC
←
PC + 3 + jdisp8 if A.bit = 1
PSW.bit, $addr16
3
−
9 PC
←
PC + 3 + jdisp8 if PSW.bit = 1
BT
[HL].bit, $addr16
3
10
11 + n PC
←
PC + 3 + jdisp8 if (HL).bit = 1
saddr.bit, $addr16
4
10
11
PC
←
PC + 4 + jdisp8 if (saddr.bit) = 0
sfr.bit, $addr16
4
−
11 PC
←
PC + 4 + jdisp8 if sfr.bit = 0
A.bit, $addr16
3
8
−
PC
←
PC + 3 + jdisp8 if A.bit = 0
PSW.bit, $addr16
4
−
11 PC
←
PC + 4 + jdisp8 if PSW. bit = 0
BF
[HL].bit, $addr16
3
10
11 + n PC
←
PC + 3 + jdisp8 if (HL).bit = 0
saddr.bit, $addr16
4
10
12
PC
←
PC + 4 + jdisp8 if (saddr.bit) = 1
then reset (saddr.bit)
sfr.bit, $addr16
4
−
12 PC
←
PC + 4 + jdisp8 if sfr.bit = 1
then reset sfr.bit
A.bit, $addr16
3
8
−
PC
←
PC + 3 + jdisp8 if A.bit = 1
then reset A.bit
PSW.bit, $addr16
4
−
12 PC
←
PC + 4 + jdisp8 if PSW.bit = 1
then reset PSW.bit
× × ×
BTCLR
[HL].bit, $addr16
3
10 12 + n + m PC
←
PC + 3 + jdisp8 if (HL).bit = 1
then reset (HL).bit
B, $addr16
2
6
−
B
←
B
−
1, then
PC
←
PC + 2 + jdisp8 if B
≠
0
C, $addr16
2
6
−
C
←
C
−
1, then
PC
←
PC + 2 + jdisp8 if C
≠
0
Conditional
branch
DBNZ
saddr, $addr16
3
8
10
(saddr)
←
(saddr)
−
1, then
PC
←
PC + 3 + jdisp8 if (saddr)
≠
0
SEL
RBn 2
4
−
RBS1, 0
←
n
NOP
1
2
−
No Operation
EI
2
−
6 IE
←
1 (Enable Interrupt)
DI
2
−
6 IE
←
0 (Disable Interrupt)
HALT
2
6
−
Set HALT Mode
CPU
control
STOP
2
6
−
Set STOP Mode
Notes 1. When the internal high-speed RAM area is accessed or for an instruction with no data access
2. When an area except the internal high-speed RAM area is accessed
Remarks 1. One instruction clock cycle is one cycle of the CPU clock (f
CPU
) selected by the processor clock
control register (PCC).
2. This clock cycle applies to the internal ROM program.
3. n is the number of waits when the external memory expansion area is read.
4. m is the number of waits when the external memory expansion area is written.