參數(shù)資料
型號: UPD17218
廠商: NEC Corp.
元件分類: 4位微控制器
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述: 4位單片機的小型通用紅外遙控器
文件頁數(shù): 54/84頁
文件大?。?/td> 350K
代理商: UPD17218
μ
PD17215, 17216, 17217, 17218
54
Table 11-2 Reserved Symbols (1/2)
Symbol Name
Attribute
Value
R/W
Description
DBF3
MEM
0.0CH
R/W
Bits 15-12 of data buffer
DBF2
MEM
0.0DH
R/W
Bits 11-8 of data buffer
DBF1
MEM
0.0EH
R/W
Bits 7-4 of data buffer
DBF0
MEM
0.0FH
R/W
Bits 3-0 of data buffer
AR3
MEM
0.74H
R
Bits 15-12 of address register
AR2
MEM
0.75H
R/W
Bits 11-8 of address register
AR1
MEM
0.76H
R/W
Bits 7-4 of address register
AR0
MEM
0.77H
R/W
Bits 3-0 of address register
WR
MEM
0.78H
R/W
Window register
BANK
MEM
0.79H
R
Bank register
IXH
MEM
0.7AH
R
Bits 11-8 of index register
MPH
MEM
0.7AH
R
Bits 7-4 of memory pointer
MPE
FLG
0.7AH.3
R/W
Memory pointer enable flag
IXM
MEM
0.7BH
R/W
Bits 7-4 of index register
MPL
MEM
0.7BH
R/W
Bits 3-0 of memory pointer
IXL
MEM
0.7CH
R/W
Bits 3-0 of index register
RPH
MEM
0.7DH
R
Bits 7-4 of register pointer
RPL
MEM
0.7EH
R/W
Bits 3-0 of register pointer
PSW
MEM
0.7FH
R/W
Program status word
BCD
FLG
0.7EH.0
R/W
BCD flag
CMP
FLG
0.7FH.3
R/W
Compare flag
CY
FLG
0.7FH.2
R/W
Carry flag
Z
FLG
0.7FH.1
R/W
Zero flag
IXE
FLG
0.7FH.0
R/W
Index register enable flag
P0A0
FLG
0.70H.0
R/W
Bit 0 of port 0A
P0A1
FLG
0.70H.1
R/W
Bit 1 of port 0A
P0A2
FLG
0.70H.2
R/W
Bit 2 of port 0A
P0A3
FLG
0.70H.3
R/W
Bit 3 of port 0A
P0B0
FLG
0.71H.0
R/W
Bit 0 of port 0B
P0B1
FLG
0.71H.1
R/W
Bit 1 of port 0B
P0B2
FLG
0.71H.2
R/W
Bit 2 of port 0B
P0B3
FLG
0.71H.3
R/W
Bit 3 of port 0B
P0C0
FLG
0.72H.0
R/W
Bit 0 of port 0C
P0C1
FLG
0.72H.1
R/W
Bit 1 of port 0C
P0C2
FLG
0.72H.2
R/W
Bit 2 of port 0C
P0C3
FLG
0.72H.3
R/W
Bit 3 of port 0C
P0D0
FLG
0.73H.0
R/W
Bit 0 of port 0D
P0D1
FLG
0.73H.1
R/W
Bit 1 of port 0D
P0D2
FLG
0.73H.2
R/W
Bit 2 of port 0D
P0D3
FLG
0.73H.3
R/W
Bit 3 of port 0D
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