HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 107

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

Table 2.26 Added CPU Instructions (cont)
Instruction
STS.L
STS
STS.L
STS
STS.L
SETRC
SETRC
LDRS
LDRE
2.5.2
Table 2.27 lists the DSP data transfer instructions by classification.
Table 2.27 Classification of DSP Data Transfer Instructions
Classification
Double data
transfer
instructions
Single data
transfer
instructions
The data transfer instructions are divided into two groups, double data transfers and single data
transfers. Double data transfers can be combined with DSP operation instructions to perform DSP
parallel processing. The parallel processing instructions are 32 bit length, and the double data
transfer instructions are incorporated into their A fields. Double data transfers that are not parallel
processing instructions are 16 bit length, as are the single data transfer instructions.
The X memory and Y memory can be accessed simultaneously in parallel in double data transfers.
One instruction each is designated from among the X and Y memory data accesses. The Ax
DSP Data Transfer Instruction Set
Y0,Rn
Y1,Rn
#imm
X1,@-Rn
Y0,@-Rn
Y1,@-Rn
Rm
@(disp,PC)
@(disp,PC)
Types
4
1
Total: 5
Code
0000nnnn10101010
0000nnnn10111010
0100mmmm00010100
10000010iiiiiiii
10001100dddddddd
10001110dddddddd
0100nnnn10010010
0100nnnn10100010
0100nnnn10110010
Operation
Code
NOPX
MOVX
NOPY
MOVY
MOVS
Function
X memory no operation
X memory data transfer
Y memory no operation
Y memory data transfer
Single data transfer
Operation
Rn–4
Y0 Rn
Rn–4
Y1 Rn
Rn–4
Rm[11:0]
imm RC(SR[23:16]),
0 SR[27:24]
disp
disp
2+PC RS
2+PC RE
Rn,X1 (Rn)
Rn,Y0 (Rn)
Rn,Y1 (Rn)
RC (SR[27:16]) 1
Cycles
1
1
1
1
1
1
1
1
No. of
Instructions
14
16
Total: 30
T Bit
—
—
—
—
—
—
—
—
—
89