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SM8521 Datasheet(PDF) 9 Page - Sharp Corporation

Part # SM8521
Description  8-Bit Single-Chip Microcomputer
PDF  56 Pages
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Manufacturer  SHARP [Sharp Corporation]
Direct Link  http://sharp-world.com/
Logo SHARP - Sharp Corporation

SM8521 Datasheet(HTML) 9 Page - Sharp Corporation

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SM8521
- 9 -
Table 2
Addressing Mode Summary
NAME
SYMBOL
Range
Operand ∗1
Implied
To specify the carry(C) and interrupt enable
(I) in the instruction code.
Register
r
r = R0-R7
General register [byte]
Register pair
rr
r = RR0, RR2, … , RR14
General register [word]
Register file
R
R = 0 to 255 (R0-R15)
Register file (0000H-007FH) and (0080H-00FFH)
[byte]
Register file pair
RR
R = 0, 2, … 254
(RR0, RR2, … , RR14)
Register file (0000H-007FH) and (0080H-00FFH)
[byte]
Register indirect
@r
r = R0-R7
Memory (0000H-00FFH) [byte]
Register indirect
auto increment
(r)+
r = R0-R7
Memory (0000H-00FFH) [byte]
Register indirect
auto decrement
–(r)
r = R0-R7
Memory (0000H-00FFH) [byte]
Register index
n(r)∗2
n = 00H-FFH, r = R1-R7
Memory (0000H-00FFH) [byte]
Register pair indirect
@rr
rr = RR0, RR2, … , RR14
Memory (0000H-FFFFH) [word/byte]
Register pair indirect
auto increment
(rr)+
rr = RR0, RR2, … , RR14
Memory (0000H-FFFFH) [word/byte]
Register pair indirect
auto decrement
–(rr)
rr = RR0, RR2, … , RR14
Memory (0000H-FFFFH) [word/byte]
Register pair index
nn(rr)∗3
nn = 0000H-FFFFH
rr = RR2, RR4, … , RR14
Memory (0000H-FFFFH) [word/byte]
Index indirect
@nn(r)∗2
nn = 0000H-FFFFH
r = R1-R7
Memory (0000H-FFFFH) [word]
Immediate
IM
IM = 00H-FFH
The immediate data in the instruction code [byte]
Immediate long
IML
IML = 0000H-FFFFH
The immediate data in the instruction code [word]
Bit
b
b = 0 to 7
Register
file
(0000H-007FH)
and
memory
(0080H-00FFH, FF00H-FFFFH) [bit] (1 bit of 1 byte
pointed by R, n(r) and DAp)
Port
p
Register file (0010H-0017H) [byte]
Relative
RA
PC – 128 to PC + 127
Program memory (1000H-FFFFH)
Direct
DA
DA = 0000H-FFFFH
Memory (0000H-FFFFH) [byte]
Direct short
DAs
DAs = 1000H-1FFFH
Program memory (1000H-1FFFH)
Direct special page
DAp
DAp = FF00H-FFFFH
Program memory (FF00H-FFFFH) [byte]
Direct indirect
@DA
DA = 0000H-FFFFH
Memory (0000H-FFFFH)
∗1 The data indicated by [ ] is the unit of possible to use in Load and Arithmetic Instructions.
∗2 R0 can not be used.
∗3 RR0 can not be used.



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