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85
Chapter 3 Functions
3.2 Functions
LoaD Control register
Transfer to control register
[ Flag Change ]
[ Description Example ]
[ Related Instructions ]
POPC,PUSHC,STC,LDINTB
[ Selectable src/dest ]
[ Function ]
LDC
LDC
[ Syntax ]
LDC
src,dest
• This instruction transfers
src
to the control register indicated by
dest
. If
src
is memory, the required
memory capacity is 2 bytes.
• If the destination is INTBL or INTBH, make sure that bytes are transferred in succession.
• No interrupt requests are accepted immediately after this instruction.
LDC
R0,SB
LDC
A0,FB
[ Operation ]
dest src
src
dest
R0L/
R0
R0H/
R1
R1L/
R2
R1H/
R3
FB
SB
SP
*1
ISP
A0/
A0
A1/
A1
[A0]
[A1]
FLG
INTBH
INTBL
dsp:8[A0]
dsp:8[A1]
dsp:8[SB]
dsp:8[FB]
dsp:16[A0] dsp:16[A1]
dsp:16[SB]
abs16
dsp:20[A0] dsp:20[A1]
abs20
#IMM
R2R0
R3R1
A1A0
U
I
O
B
S
Z
D
C
*2
*2
*2
*2
*2
*2
*2
*2
*2 The flag changes only when
dest
is FLG.
*1 Operation is performed on the stack pointer indicated by the U flag.
[ Instruction Code/Number of Cycles ]
Page=189
Flag
Change
Summary of Contents for R8C/Tiny Series
Page 50: ...Chapter 3 Functions 3 1 Guide to This Chapter 3 2 Functions...
Page 151: ...134 Chapter 3 Functions 3 2 Functions Blank for page layout...
Page 278: ...Chapter 6 Calculation Number of Cycles 6 1 Instruction queue buffer...
Page 297: ...R8C Tiny Series Software Manual 2 6 2 Ote machi Chiyoda ku Tokyo 100 0004 Japan...