參數(shù)資料
型號: P89LPC922
廠商: NXP Semiconductors N.V.
英文描述: MINIATURE POWER RELAY
中文描述: 8位微控制器兩個小時80C51的核心2鍵盤/ 4 KB的/ 8 KB的3伏的低功耗Flash 256 - RAM的字節(jié)數(shù)據(jù)
文件頁數(shù): 11/45頁
文件大小: 877K
代理商: P89LPC922
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Special function registers
…continued
* indicates SFRs that are bit addressable.
Name
Description
SFR
addr.
MSB
P
P
8
9
P
R
1
I2SCLL
Serial clock generator/SCL
duty cycle register LOW
I
2
C status register
DCH
00
00000000
I2STAT
D9H
STA.4
AF
EA
EF
-
BF
-
-
STA.3
AE
EWDRT
EE
EST
BE
PWDRT
PWDRT
H
FE
PST
PSTH
-
STA.2
AD
EBO
ED
-
BD
PBO
PBOH
STA.1
AC
ES/ESR
EC
-
BC
PS/PSR
PSH/
PSRH
FC
-
-
-
STA.0
AB
ET1
EB
-
BB
PT1
PT1H
0
0
0
F8
11111000
Bit address
AA
EX1
EA
EC
BA
PX1
PX1H
A9
ET0
E9
EKBI
B9
PT0
PT0H
A8
EX0
E8
EI2C
B8
PX0
PX0H
IEN0*
Interrupt enable 0
A8H
00
[1]
00000000
Bit address
IEN1*
Interrupt enable 1
E8H
00
[1]
00x00000
Bit address
IP0*
IP0H
Interrupt priority 0
Interrupt priority 0 HIGH
B8H
B7H
00
[1]
00
[1]
x0000000
x0000000
Bit address
FF
-
-
-
FD
-
-
-
FB
-
-
-
FA
PC
PCH
-
F9
PKBI
PKBIH
PATN
_SEL
F8
PI2C
PI2CH
KBIF
IP1*
IP1H
KBCON
Interrupt priority 1
Interrupt priority 1 HIGH
Keypad control register
F8H
F7H
94H
00
[1]
00
[1]
00
[1]
00x00000
00x00000
xxxxxx00
KBMASK
Keypad interrupt mask
register
Keypad pattern register
86H
00
00000000
KBPATN
93H
FF
11111111
Bit address
87
86
85
84
83
82
81
80
P0*
Port 0
80H
T1/KB7
CMP1
/KB6
96
-
CMPREF
/KB5
95
RST
CIN1A
/KB4
94
INT1
CIN1B
/KB3
93
INT0/
SDA
B3
-
CIN2A
/KB2
92
T0/SCL
CIN2B
/KB1
91
RXD
CMP2
/KB0
90
TXD
[1]
Bit address
97
-
P1*
Port 1
90H
[1]
Bit address
B7
-
B6
-
B5
-
B4
-
B2
-
B1
B0
P3*
P0M1
P0M2
P1M1
Port 3
Port 0 output mode 1
Port 0 output mode 2
Port 1 output mode 1
B0H
84H
85H
91H
XTAL1
XTAL2
[1]
(P0M1.7) (P0M1.6) (P0M1.5) (P0M1.4) (P0M1.3) (P0M1.2) (P0M1.1) (P0M1.0) FF
(P0M2.7) (P0M2.6) (P0M2.5) (P0M2.4) (P0M2.3) (P0M2.2) (P0M2.1) (P0M2.0) 00
(P1M1.7) (P1M1.6)
-
(P1M1.4) (P1M1.3) (P1M1.2) (P1M1.1) (P1M1.0) D3
[1]
11111111
00000000
11x1xx11
Table 4:
Bit functions and addresses
Reset value
Hex
LSB
Binary
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