參數(shù)資料
型號(hào)： UPD78324
廠商： NEC Corp.
英文描述： 16/8-BIT SINGLE-CHIP MICROCONTROLLER
中文描述： 16/8-BIT單片機(jī)
文件頁數(shù)： 23/86頁
文件大?。?/td> 454K
代理商： UPD78324
23
μ
PD78323, 78324
The sixteen 8-bit registers can function as eight 16-bit register pairs (RP0 to RP7) as well.
As shown in Table 2-1, the sixteen 8-bit registers are characterized by functional names. The X register functions as
the lower half of the 16-bit accumulator, the A register functions as the upper half of the 8-bit or 16-bit accumulator, the B
and C registers function as a counter, and DE, HL, VP and UP function as address register pairs. In particular the VP register
is function as a base register and the UP register is as a user stack pointer.
The unique function register charges as shown in Table 2-1 according to the value of the register set select flag (RSS)
in the PSW. Thus, if the program is described by the functional name, another register set of X, A, C and B can be used
by means of the RSS flag.
The
μ
PD78324 can carry out processed data addressing operations, implied addressing by functional names with
importance attached to the unique function of each register and register addressing by absolute names with a view to fast
processing with a small number of data transfers or creating highly descriptive programs.
Table 2-1. General Register Configuration
R5
A
R6
C
R7
B
R8
VP
L
VP
L
R9
VP
H
VP
H
R10
UP
L
UP
L
R11
UP
H
UP
H
R12
E
E
R13
D
D
R14
L
L
R15
H
H
Absolute
Name
Functional Name
RSS = 0
RSS = 1
R0
X
R1
A
R2
C
R3
B
R4
X
RP5
UP
UP
RP6
DE
DE
RP7
HL
HL
Absolute
Name
Functional Name
RSS = 0
RSS = 1
RP0
AX
RP1
BC
RP2
AX
RP3
BC
RP4
VP
VP
相關(guān)PDF資料
PDF描述
UPD784217AY 16-BIT SINGLE-CHIP MICROCONTROLLERS
UPD784217AYGF 16-BIT SINGLE-CHIP MICROCONTROLLERS
UPD784217AGC 16-BIT SINGLE-CHIP MICROCONTROLLERS
UPD784217AGF 16-BIT SINGLE-CHIP MICROCONTROLLERS
UPD784215AGC 16-BIT SINGLE-CHIP MICROCONTROLLERS
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