AT89C51RD2-UM データシートの表示（PDF） - Atmel Corporation
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AT89C51RD2-UM Datasheet PDF : 137 Pages
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AT89C51RD2/ED2
Table 3-3.
Mnemonic
Interrupt SFRs
Add Name
7
6
5
4
3
2
1
0
IEN0
A8h Interrupt Enable Control 0
EA
EC
ET2
ES
ET1
EX1
ET0
EX0
IEN1
B1h Interrupt Enable Control 1
-
-
-
-
-
ESPI
KBD
IPH0
B7h Interrupt Priority Control High 0
-
PPCH PT2H
PHS
PT1H
PX1H
PT0H
PX0H
IPL0
B8h Interrupt Priority Control Low 0
-
PPCL
PT2L
PLS
PT1L
PX1L
PT0L
PX0L
IPH1
B3h Interrupt Priority Control High 1
-
-
-
-
-
SPIH
KBDH
IPL1
B2h Interrupt Priority Control Low 1
-
-
-
-
-
SPIL
KBDL
Table 3-4.
Mnemonic
Port SFRs
Add Name
7
6
5
4
3
2
1
0
P0
80h 8-bit Port 0
P1
90h 8-bit Port 1
P2
A0h 8-bit Port 2
P3
B0h 8-bit Port 3
P4
C0h 8-bit Port 4
P5
E8h 8-bit Port 5
P5
C7h 8-bit Port 5 (byte addressable)
Table 3-5.
Mnemonic
TCON
TMOD
TL0
TH0
TL1
TH1
WDTRST
WDTPRG
T2CON
T2MOD
RCAP2H
RCAP2L
TH2
Timer SFRs
Add Name
7
88h Timer/Counter 0 and 1 Control
TF1
89h Timer/Counter 0 and 1 Modes
GATE1
8Ah Timer/Counter 0 Low Byte
8Ch Timer/Counter 0 High Byte
8Bh Timer/Counter 1 Low Byte
8Dh Timer/Counter 1 High Byte
A6h WatchDog Timer Reset
A7h WatchDog Timer Program
-
C8h Timer/Counter 2 control
TF2
C9h Timer/Counter 2 Mode
-
CBh
Timer/Counter 2 Reload/Capture
High Byte
CAh
Timer/Counter 2 Reload/Capture
Low Byte
CDh Timer/Counter 2 High Byte
6
TR1
C/T1#
-
EXF2
-
5
TF0
M11
-
RCLK
-
4
3
2
TR0
IE1
IT1
M01
GATE0 C/T0#
-
TCLK
-
-
EXEN2
-
WTO2
TR2
-
1
0
IE0
IT0
M10
M00
WTO1
C/T2#
T2OE
WTO0
CP/RL2#
DCEN
5
4235K–8051–05/08
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