參數(shù)資料
型號： UPD17201A
廠商： NEC Corp.
英文描述： 4-BIT SINGLE-CHIP MICROCONTROLLER WITH LCD CONTROLLER/DRIVER AND A/D CONVERTER FOR INFRARED REMOTE CONTROL TRANSMITTERS
中文描述： 4位單片機與LCD控制器/驅(qū)動器和A / D轉(zhuǎn)換器紅外遙控遞質(zhì)
文件頁數(shù)： 32/120頁
文件大?。?/td> 516K
代理商： UPD17201A
μ
PD17201A, 17207
32
5.7.3
Switching among Port, Timer Output, and LED Output
The functions of port 0D (port, timer output, and LED output) are selected by settings of the TMOE and NRZEN
bits of register file (TMOE for P0D
1
and NRZEN for P0D
0
). Refer to
Fig. 5-3
.
5.7.4
Switching between Port and Serial Interface
The functions of port 1A (port and serial interface) are selected by settings of the SIOEN bit of register file. Refer
to
Fig. 5-3
.
The mode of serial interface is controlled by SIOTS (bit 3 of address 22H), SIOHIZ (bit 2 of address 22H), SIOCK1
(bit 1 of address 22H), and SIOCK0 (bit 0 of address 22H) of register file.
Fig. 5-3
Input/Output Control Register for Selection of Port,
Timer Output, LED Output, and Serial Interface
SIOEN
0
1
Uses port 1A as I / O port
Uses port 1A as serial interface
Function
TMOE
0
1
Uses P0D
1
as I / O port
Uses P0D
1
external signel output for 8-bit timer’s
Function
NRZEN
0
1
Uses P0D
0
as I / O port
Uses P0D
0
as LED output
Function
Bit 3
Bit 2
Bit 1
Bit 0
0
NRZEN
TMOE
SIOEN
R
R/W
0
0
0
0
Read/write
Default at reset
R: Read, W: Write
RF: Address 23H
R/W
R/W
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