參數(shù)資料
型號: S1C621A0F0A0100
元件分類: 微控制器/微處理器
英文描述: MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 107/161頁
文件大小: 1037K
代理商: S1C621A0F0A0100
S1C621A0 TECHNICAL HARDWARE
EPSON
I-25
CHAPTER 3: PERIPHERAL CIRCUITS (I/O Ports)
Output data
The I/O port works as an output port when the control
register is set to 1. The data at address 0FEH on the data
memory is output to pins P00–P03.
Note When the data at address 0FEH is read with the I/O port in the
output mode, the data at the pin is directly loaded to the data bus.
Note that, with the Pnm pin connected to a low-impedance load,
the data stored in the data memory may differ from the data that is
read.
Table 3.6.1 I/O Memory Map
Note: Init = value at initial reset, – = not set on the circuit
Address
Comment
Register
D3
D2
D1
D0
Name
Init
1
0
0FEH
0FFH
P03
P02
P01
P00
OPDT
OPON
IOC
R20
R/W
P03
P02
P01
P00
1
OPDT
OPON
IOC
R20
0
High
On
Out
High
Low
Off
In
Low
Analog comparator data (0 or 1)
Analog comparator on/off
I/O port control out/in
Output port
High
Low
I/O port (used as input port after initial reset)
R
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