TSC80251 TEMIC [TEMIC Semiconductors], TSC80251 Datasheet - Page 47

• Manufacturer Part Number: TSC80251
• Manufacturer: TEMIC [TEMIC Semiconductors]

TSC80251
If the average execution time of the considered instructions is larger than the number of states given by Table 5.1. ,
this larger value will prevail as the limiting factor. Otherwise, the value from Table 5.1. must be taken. This is provid-
ing a fair estimation of the execution speed but only the actual code execution can provide the final value.
5.1.1. Notation for Instruction Operands
Table 5.2. to Table 5.6. provide Notation for Instruction Operands.
5.2
dir8
dir16
#data
#data16
#0data16
#1data16
#short
bit51
bit
Direct Address
Direct Address
Average size
Instructions
Immediate
(bytes)
Address
of
of
1
2
3
4
5
Table 5.1. Minimum Number of States per Instruction for given Average Sizes
Page Mode
Page Mode
A direct 8-bit address. This can be a memory address (00h-7Fh) or a
SFR address (80h-FFh). It is a byte (default), word or double word
depending on the other operand.
A 16-bit memory address (00:0000h-00:FFFFh) used in direct
addressing.
An 8-bit constant that is immediately addressed in an instruction
A 16-bit constant that is immediately addressed in an instruction
A 32-bit constant that is immediately addressed in an instruction. The
upper word is filled with zeros (#0data16) or ones (#1data16).
A constant, equal to 1, 2, or 4, that is immediately addressed in an
instruction.
A directly addressed bit (bit number= 00h-FFh) in memory or an SFR.
Bits 00h-7Fh are the 128 bits in byte locations 20h-2Fh in the on-chip
RAM. Bits 80h-FFh are the 128 bits in the 16 SFRs with addresses that
end in 0h or 8h, S:80h, S:88h, S:90h,..., S:F0h, S:F8h.
A directly addressed bit in memory locations 00:0020h-00:007Fh or in
any defined SFR.
(states)
1
2
3
4
5
Table 5.3. Notation for Immediate Addressing
0 Wait State
Table 5.2. Notation for Direct Addressing
Table 5.4. Notation for Bit Addressing
10
2
4
6
8
Description
Description
Description
1 Wait State
12
15
3
6
9
Non–Page Mode (states)
2 Wait States
12
16
20
4
8
3 Wait States
10
15
20
25
5
Rev. C – May 7, 1999
C251
C251
C251
4 Wait States
12
18
24
30
6
C51
C51
C51