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參數(shù)資料
| 型號(hào)： | UPD17201AGF |
| 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(jī)與LCD控制器/驅(qū)動(dòng)器和A / D轉(zhuǎn)換器紅外遙控遞質(zhì) |
| 文件頁數(shù)： | 55/120頁 |
| 文件大?。?/td> | 516K |
| 代理商： | UPD17201AGF |
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μ
PD17201A, 17207
55
If the external clock is selected, the clock pulses supplied from the SCK pin are supplied to serial interface when
the SIOTS flag is turned on (“1”). Similarly, when eight clock pulses are supplied to the serial interface, the SIOTS
flag is automatically turned off (“0”) and the supply of clock pulses to the serial interface is stopped. At this time, the
IRQSIO flag (bit 3, address 3BH) of the register file is turned on (“1”).
The IRQSIO flag is automatically reset to “0” when the SIOTS flag is turned on (“1”).
To forcibly stop transfer of serial data, turn on the SIOTS flag manually. Note, however, that data transfer cannot
be resumed from the point at which the transfer has been forcibly stopped.
Fig. 10-1 Shift Timing Waveforms
SCK pin
SI pin
SO pin
(SIOHIZ=0)
SO pin
(SIOHIZ=1)
IRQSIO
1
2
3
4
5
6
7
8
DI7
DI6
DI5
DI4
DI3
DI2
DI1
DI0
DO7
DO6
DO5
DO4
DO3
DO2
DO1
DO0
High-impedance
Turns on SIOTS (1).
Turns off SIOTS (0).
(End of transfer)
Remark
DI : Serial data input
DO: Serial data output
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