參數(shù)資料
型號(hào)： UPD17149GTA1
廠商： NEC Corp.
英文描述： SMALL, GENERAL-PURPOSE 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述： 小，通用4位單晶片微控制器
文件頁數(shù)： 23/102頁
文件大?。?/td> 408K
代理商： UPD17149GTA1
23
μ
PD17145(A1), 17147(A1), 17149(A1)
Figure 7-2. Configuration of System Register
Notes 1.
0 in this field means that the bit is “fixed to 0”.
b
3
and b
2
of AR2 of the
μ
PD17145(A1) are fixed to 0. b
3
of AR2 of the
μ
PD17147(A1) is fixed to
0.
2.
74H
75H
76H
77H
78H
79H
7AH
7BH
7CH
7DH
7EH
7FH
AR3
AR2
AR1
AR0
WR
BANK
IXH
IXM
IXL
RPH
RPL
PSW
MPH
MPL
b
3
b
2
b
1
b
0
b
3
b
2
b
1
b
0
b
3
b
2
b
1
b
0
b
3
b
2
b
1
b
0
b
3
b
2
b
1
b
0
b
3
b
2
b
1
b
0
b
3
b
2
b
1
b
0
b
3
b
2
b
1
b
0
b
3
b
2
b
1
b
0
b
3
b
2
b
1
b
0
b
3
b
2
b
1
b
0
b
3
b
2
b
1
b
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
(RP)
(MP)
(IX)
(BANK)
(AR)
M
P
E
B
C
D
C
M
P
C
Y Z
I
X
E
Address
Name
Symbol
Bit
Data
Note1
Initial
value at
reset
0
Note2
Undefi-
ned
Address register
(AR)
Window
register
(WR)
Bank
register
(BANK)
Index register
(IX)
Data memory
row address
pointer (MP)
General register
pointer
(RP)
Program
status
word
(PSWORD)
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