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NSC800N Datasheet(PDF) 34 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # NSC800N
Description  NSC800TM High-Performance Low-Power CMOS Microprocessor
PDF  76 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

NSC800N Datasheet(HTML) 34 Page - National Semiconductor (TI)

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125 16-Bit Loads
REGISTER TO REGISTER
LD
rr nn
Load 16-bit register pair with immediate data
rr
w nn
No flags affected
76543210
LD BC nn
LD DE nn
00
rp
0001
LD HL nn
LD SP nn
n (low-order byte)
n (high-order byte)
Timing
M cycles3
T states10 (4 3 3)
Addressing Mode
SourceImmediate Extended
DestinationRegister
76
5
43210
LD IX nn (for NX e 0)
11NX 11101
LD IY nn (for NX e 1)
00
1
00001
n (low-order byte)
n (high-order byte)
Timing
M cycles4
T states14 (4 4 3 3)
Addressing Mode
SourceImmediate Extended
DestinationRegister
LD
SP ss
Load the SP from 16-bit register ss
SP
w ss
No flags affected
76543210
11111001
LD SP HL
Timing
M cycles1
T states6
Addressing Mode
SourceRegister
DestinationRegister (Implied)
76
5
43210
LD SP IX (for NX e 0)
11NX 11101
LD SP IY (for NX e 1)
11
1
11001
Timing
M cycles2
T states10 (4 6)
Addressing Mode
SourceRegister
DestinationRegister (Implied)
REGISTER TO MEMORY
LD
(nn) rr
Load memory location nn with contents of 16-bit register rr
(nn)
w rrL
No flags affected
(nn a 1)
w rrH
76543210
LD (nn) HL
(note an alternate
00100010
opcode below)
n (low-order byte)
n (high-order byte)
Timing
M cycles5
T states16 (4 3 3 3 3)
Addressing Mode
SourceRegister
DestinationDirect
76543210
LD (nn) BC
LD (nn) DE
11101101
LD (nn) HL
LD (nn) SP
01
rp
0011
n (low-order byte)
n (high-order byte)
Timing
M cycles6
T states20 (4 4 3 3 3 3)
Addressing Mode
SourceRegister
DestinationDirect
76
5
43210
LD (nn) IX (for NX e 0)
11NX 11101
LD (nn) IY (for NX e 1)
00
1
00010
n (low-order byte)
n (high-order byte)
Timing
M cycles6
T states20 (4 4 3 3 3 3)
Addressing Mode
SourceRegister
DestinationDirect
34



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