ST62T45B STMicroelectronics, ST62T45B Datasheet - Page 53

no-image

ST62T45B

Manufacturer Part Number
ST62T45B
Description
8-BIT OTP/EPROM MCU
Manufacturer
STMicroelectronics
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ST62T45B
Manufacturer:
ST
Quantity:
64
Part Number:
ST62T45B
Manufacturer:
ST
0
Part Number:
ST62T45BQ6
Manufacturer:
ST
0
www.DataSheet4U.com
5.3 INSTRUCTION SET
The ST6 core offers a set of 40 basic instructions
which, when combined with nine addressing
modes, yield 244 usable opcodes. They can be di-
vided into six different types: load/store, arithme-
tic/logic, conditional branch, control instructions,
jump/call, and bit manipulation. The following par-
agraphs describe the different types.
All the instructions belonging to a given type are
presented in individual tables.
Table 22. Load & Store Instructions
Notes:
X,Y. Indirect Register Pointers, V & W Short Direct Registers
# .
rr.
* .
LD A, X
LD A, Y
LD A, V
LD A, W
LD X, A
LD Y, A
LD V, A
LD W, A
LD A, rr
LD rr, A
LD A, (X)
LD A, (Y)
LD (X), A
LD (Y), A
LDI rr, #N
.
LDI A, #N
Immediate data (stored in ROM memory)
Data space register
Affected
Not Affected
Instruction
Short Direct
Short Direct
Short Direct
Short Direct
Short Direct
Short Direct
Short Direct
Short Direct
Direct
Direct
Indirect
Indirect
Indirect
Indirect
Immediate
Immediate
Addressing Mode
Load & Store . These instructions use one, two or
three bytes in relation with the addressing mode.
One operand is the Accumulator for LOAD and the
other operand is obtained from data memory us-
ing one of the addressing modes.
For Load Immediate one operand can be any of
the 256 data space bytes while the other is always
immediate data.
Bytes
1
1
1
1
1
1
1
1
2
2
1
1
1
1
2
3
Cycles
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
ST62T45B/E45B
Z
*
Flags
C
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
53/72
52

Related parts for ST62T45B