參數(shù)資料
型號(hào): UPD70F3271YGF-JBT-A
元件分類(lèi): 微控制器/微處理器
英文描述: 32-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP100
封裝: 14 X 20 MM, PLASTIC, QFP-100
文件頁(yè)數(shù): 12/129頁(yè)
文件大?。?/td> 8549K
代理商: UPD70F3271YGF-JBT-A
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CHAPTER 4 PORT FUNCTIONS
User’s Manual U16541EJ5V1UD
109
(1) Port 3 register (P3)
Outputs 0
Outputs 1
P3n
0
1
Output data control (in output mode) (n = 0 to 9)
P3 (P3H)
After reset: 0000H (output latch)
R/W
Address: P3 FFFFF406H,
P3L FFFFF406H, P3H FFFFF407H
0
P39
P38
P37
P36
P35
P34
P33
P32
P31
P30
8
9
10
11
12
13
14
15
(P3L)
Remarks 1. The P3 register can be read or written in 16-bit units.
However, when using the higher 8 bits of the P3 register as the P3H register and the lower 8
bits as the P3L register, P3 can be read or written in 8-bit or 1-bit units.
2. To read/write bits 8 to 15 of the P3 register in 8-bit or 1-bit units, specify them as bits 0 to 7 of
the P3H register.
(2) Port 3 mode register (PM3)
1
Output mode
Input mode
PM3n
0
1
I/O mode control (n = 0 to 9)
1
PM39
PM38
PM37
PM36
PM35
PM34
PM33
PM32
PM31
PM30
After reset: FFFFH
R/W
Address: PM3 FFFFF426H,
PM3L FFFFF426H, PM3H FFFFF427H
8
9
10
11
12
13
14
15
PM3 (PM3H)
(PM3L)
Remarks 1. The PM3 register can be read or written in 16-bit units.
However, when using the higher 8 bits of the PM3 register as the PM3H register and the
lower 8 bits as the PM3L register, PM3 can be read or written in 8-bit or 1-bit units.
2. To read/write bits 8 to 15 of the PM3 register in 8-bit or 1-bit units, specify them as bits 0 to 7
of the PM3H register.
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