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參數(shù)資料
| 型號： | MB89923PF |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | 20 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-80 |
| 文件頁數(shù)： | 15/44頁 |
| 文件大小： | 1091K |
| 代理商： | MB89923PF |
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MB89920 Series
22
DS07-12526-2E
■ I/O MAP
(Continued)
–: Unused X: Undefined
Note: Do not use vacancies
Address
Read/write
Register
Register description
Intial value
00H
(R/W)
PDR0
Port 0 data register
X X X X X X X X B
01H
(W)
DDR0
Port 0 data direction register
0 0 0 0 0 0 0 0 B
02H
(R/W)
PDR1
Port 1 data register
X X X X X X X X B
03H
(W)
DDR1
Port 1 data direction register
0 0 0 0 0 0 0 0 B
04H
Vacancy
05H
Vacancy
06H
Vacancy
07H
Vacancy
08H
(R/W)
STBC
Standby control register
0 0 0 1 X X X X B
09H
(R/W)
WDTE
Watchdog timer control register
X X X X X X X X B
0AH
(R/W)
TBCR
Time-base timer control register
X X X 0 0 0 0 0 B
0BH
(R/W)
LVRC
Low-voltage detection reset control register
0 X 1 1 X 0 0 X B
0CH
(R/W)
PDR3
Port 3 data/peripheral I/O control register
0 0 0 0 – X X X B
0DH
(W)
DDR3
Port 3 data direction register
– – – – – 0 0 0 B
0EH
(R/W)
PDR4
Port 4 data register
– – 1 1 1 1 1 1 B
0FH
(R/W)
PDR5
Port 5 data register
1 1 1 1 1 1 1 1 B
10H
(R/W)
PDR6
Port 6 data register
1 1 1 1 1 1 1 1 B
11H
(R/W)
PDR7
Port 7 data register
1 1 1 1 1 1 1 1 B
12H
(R/W)
PDR8
Port 8 data register
– – – – 1 1 1 1 B
13H
(R/W)
PDR9
Port 9 data register
X X X X X X X X B
14H
(W)
DDR9
Port 9 data direction register
0 0 0 0 0 0 0 0 B
15H
(R/W)
PDR2
Port 2 data register
X X X X X X X X B
16H
(R/W)
DDR2
Port 2 data direction register
0 0 0 0 0 0 0 0 B
17H
(R/W)
BUZR
Buzzer control register
X X X X 0 0 0 0 B
18H
(R/W)
ADC1
AD converter control register 1
0 0 0 0 0 0 0 0 B
19H
(R/W)
ADC2
AD converter control register 2
X 0 0 0 0 0 0 1 B
1AH
(R/W)
ADCH
AD converter data register “H”
– – – – – – X X B
1BH
(R/W)
ADCL
AD converter data register “L”
X X X X X X X X B
1CH
(R/W)
SMR
Serial mode register
0 0 0 0 0 0 0 0 B
1DH
(R/W)
SDR
Serial data register
X X X X X X X X B
1EH
Vacancy
1FH
(W)
ICR1
Port 1 input control register
0 0 0 0 0 0 0 0 B
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