z893232yfsc ZiLOG Semiconductor, z893232yfsc Datasheet - Page 41

• Manufacturer Part Number: z893232yfsc
• Description: 16-bit Digital Signal Processors
• Manufacturer: ZiLOG Semiconductor

INSTRUCTION FORMAT
DS95DSP0101 Q4/95
Source/Destination
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
D15 D14 D13 D12 D11 D10 D9
D15
Table 13. Registers
D14 D13 D12 D11 D10 D9
Note: Source/Destination fields can specify either register
or RAM address in RAM pointer indirect mode.
Figure 36. Short Immediate Data Load Format
Figure 35. General Instruction Format
Register
BUS
X
Y
A
SR
STACK
P C
P
EXT0
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
[1]
P R E L I M I N A R Y
D8
[1]
D8
D7
D7
D6
D6
D5
D5
Notes:
[1] If RAM Bank bit is 0, then Pn:0 are selected.
[2] Read only.
[3] When the short form direct mode is selected,
Source/Destination
D4
D4
If RAM Bank bit is 1, then Pn:1 are selected.
00000-01111 or 10000-11111 are used as RAM addresses.
D3
D3
00xx
01xx
10xx
11xx
xx00
xx01
xx10
xx11
Table 14. Register Pointers Field
D2
D2
D1
D1
D0
D0
Short Immediate Data
Opcode
0 0 0 1 1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
–1/LOOP
Meaning
NOP
+ 1
+1/LOOP
P0:0 or P0:1
P1:0 or P1:1
P2:0 or P2:1
Short Form Direct Mode
Source field
Destination field
RAM Bank selection
Opcode
16-B
Reg. Pointer
P0:0
P1:0
P2:0
NA
P0:1
P1:1
P2:1
NA
IT
D
IGITAL
[2]
[2]
[2]
S
IGNAL
Z89323/373/393
P
ROCESSORS
[3]
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