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參數(shù)資料
| 型號(hào)： | UPD78P0308YGF-3BA-A |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 5 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 20 MM, LEAD FREE, PLASTIC, QFP-100 |
| 文件頁(yè)數(shù)： | 47/64頁(yè) |
| 文件大小： | 2786K |
| 代理商： | UPD78P0308YGF-3BA-A |
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49
CHAPTER 3
PIN FUNCTION (
PD780308 SUBSERIES)
User’s Manual U11377EJ3V0UD
3.2.4 P30 to P37 (Port 3)
These are 8-bit I/O ports. Besides serving as I/O ports, they function as timer I/O, clock output, and buzzer output.
The following operating modes can be specified in 1-bit units.
(1) Port mode
These ports function as 8-bit I/O ports. They can be specified as input or output ports in 1-bit units with port
mode register 3 (PM3). When they are used as input ports, internal pull-up resistors can be used by defining
pull-up resistor option register L (PUOL).
(2) Control mode
These ports function as timer I/O, clock output, and buzzer output.
(a) TI1 and TI2
Pins for external count clock input to the 8-bit timer/event counter.
(b) TO0 to TO2
Timer output pins.
(c) PCL
Clock output pin.
(d) BUZ
Buzzer output pin.
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