參數(shù)資料
型號： 780001
廠商： NEC Corp.
英文描述： Common to 78K/0 Series
中文描述： 共同的78K / 0系列
文件頁數(shù)： 17/129頁
文件大?。?/td> 644K
代理商： 780001
17
CHAPTER 2 REGISTERS
User's Manual U12326EJ4V0UM
2.2 General-Purpose Registers
General-purpose registers are mapped at particular addresses (FEE0H to FEFFH) of the data memory. These
registers consist of 4 banks, each bank consisting of eight 8-bit registers (X, A, C, B, E, D, L and H).
In addition that each register can be used as an 8-bit register, two 8-bit registers in pairs can be used as a 16-
bit register (AX, BC, DE and HL).
General-purpose registers can be described in terms of functional names (X, A, C, B, E, D, L, H, AX, BC, DE
and HL) and absolute names (R0 to R7 and RP0 to RP3).
Register banks to be used for instruction execution are set with the CPU control instruction (SEL RBn). Because
of the 4-register bank configuration, an efficient program can be created by switching between a register for normal
processing and a register for processing upon interrupt generation for each bank.
Table 2-1. General-Purpose Register Absolute Address Correspondence Table
Bank Name
Register
Absolute Address
Bank Name
Register
Absolute Address
Functional
Name
Absolute
Name
Functional
Name
Absolute
Name
BANK0
H
R7
FEFFH
BANK2
H
R7
FEEFH
L
R6
FEFEH
L
R6
FEEEH
D
R5
FEFDH
D
R5
FEEDH
E
R4
FEFCH
E
R4
FEECH
B
R3
FEFBH
B
R3
FEEBH
C
R2
FEFAH
C
R2
FEEAH
A
R1
FEF9H
A
R1
FEE9H
X
R0
FEF8H
X
R0
FEE8H
BANK1
H
R7
FEF7H
BANK3
H
R7
FEE7H
L
R6
FEF6H
L
R6
FEE6H
D
R5
FEF5H
D
R5
FEE5H
E
R4
FEF4H
E
R4
FEE4H
B
R3
FEF3H
B
R3
FEE3H
C
R2
FEF2H
C
R2
FEE2H
A
R1
FEF1H
A
R1
FEE1H
X
R0
FEF0H
X
R0
FEE0H
相關(guān)PDF資料
PDF描述
780018Y Common to 78K/0 Series
780024 Common to 78K/0 Series
780024Y Common to 78K/0 Series
780034 TL Series Toggle Switch, 1 pole, 3 position, Screw terminal, Locking Lever, Military Part Number MS24658-27N
780034Y Common to 78K/0 Series
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
780-001 制造商:EDDING 功能描述:BLACK EXTRAFINE PAINT PEN
780001 BK001 制造商:Alpha Wire 功能描述:HOOK-UP STRND 1/0 AWG BLK 1000'
780001 BK002 制造商:ALPHA DEARBORN 功能描述:Wire, Hook-Up; 1/0 AWG; 1045/30; 0.082 in.; 0.589 in.; 600 V; Black
780001 BK005 制造商:Alpha Wire 功能描述:HOOK-UP STRND 1/0 AWG BLACK 100' 制造商:Belden Inc 功能描述:780001 BLACK 100 FT
780001 BL001 制造商:Alpha Wire 功能描述:HOOK-UP STRND 1/0 AWG BLUE 1000'
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