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NSC800N Datasheet(PDF) 35 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) 35 Page - National Semiconductor (TI)

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125 16-Bit Loads (Continued)
PUSH
qq
Push the contents of register pair qq onto the memory
stack
(SP–1)
wqqH
No flags affected
(SP–2)
wqqL
SP
w SP b 2
76543210
PUSH BC
11
rs
0101
PUSH DE
PUSH HL
PUSH AF
Timing
M cycles3
T states11 (5 3 3)
Addressing Mode
SourceRegister
DestinationRegister Indirect
(Stack)
76
5
43210
PUSH IX (for NXe0)
11NX 11101
PUSH IY (for NXe1)
11
1
00101
Timing
M cycles3
T states15 (4 5 3 3)
Addressing Mode
SourceRegister
DestinationRegister Indirect
(Stack)
MEMORY TO REGISTER
LD
rr (nn)
Load 16-bit register from memory location nn
rrL
w (nn)
No flags affected
rrH
w (nn a 1)
76543210
LD HL (nn)
00101010
(note an alternate
opcode below)
n (low-order byte)
n (high-order byte)
Timing
M cycles5
T states16 (4 3 3 3 3)
Addressing Mode
SourceDirect
DestinationRegister
76543210
LD BC (nn)
LD DE (nn)
11101101
LD HL (nn)
LD SP (nn)
01
rp
0011
n (low-order byte)
n (high-order byte)
Timing
M cycles6
T states20 (4 4 3 3 3 3)
Addressing Mode
SourceDirect
DestinationRegister
76
5
43210
LD IX (nn)(for NX e 0)
11NX 11101
LD IY (nn) (for NX e 1)
00
1
01010
n (low-order byte)
n (high-order byte)
Timing
M cycles6
T states20 (4 4 3 3 3 3)
Addressing Mode
SourceDirect
DestinationRegister
POP
qq
Pop the contents of the memory stack to register qq
qqL
w (SP)
No flags affected
qqH
w (SP a 1)
SP
w SP a 2
76543210
POP BC
11
rs
0001
POP DE
POP HL
POP AF
Timing
M cycles3
T states10 (4 3 3)
Addressing Mode
SourceRegister Indirect
(Stack)
DestinationRegister
76
5
43210
POP IX (for NXe0)
11NX 11101
POP IY (for NXe1)
11
1
00001
Timing
M cycles4
T states14 (4 4 3 3)
Addressing Mode
SourceRegister Indirect
(Stack)
DestinationRegister
35



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