参数资料
型号: UPD70F3261YGF-JBT-A
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP100
封装: 14 X 20 MM, PLASTIC, QFP-100
文件页数: 18/129页
文件大小: 8549K
代理商: UPD70F3261YGF-JBT-A
CHAPTER 4 PORT FUNCTIONS
User’s Manual U16541EJ5V1UD
114
(7) Port 3 function register (PF3)
After reset: 0000H
R/W
Address: PF3 FFFFFC66H,
PF3L FFFFFC66H, PF3H FFFFFC67H
PF37
PF36
PF35
PF34
PF33
PF32
PF31
PF30
0
PF39
PF38
8
9
10
11
12
13
14
15
Normal output (CMOS output)
N-ch open-drain output
PF3n
0
1
Control of normal output or N-ch open-drain output (n = 0 to 9)
PF3 (PF3H)
(PF3L)
Caution
To pull up an output pin at a voltage of EVDD or higher, be sure to set the corresponding
PF3n bit to 1.
Remarks 1. The PF3 register can be read or written in 16-bit units.
However, when using the higher 8 bits of the PF3 register as the PF3H register and the lower
8 bits as the PF3L register, PF3 can be read or written in 8-bit or 1-bit units.
2. To read/write bits 8 to 15 of the PF3 register in 8-bit or 1-bit units, specify them as bits 0 to 7
of the PF3H register.
<R>
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