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參數(shù)資料
| 型號(hào)： | UPD780023AYCW(A)-XXX |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PDIP64 |
| 封裝： | 0.750 INCH, PLASTIC, SDIP-64 |
| 文件頁(yè)數(shù)： | 25/92頁(yè) |
| 文件大?。?/td> | 689K |
| 代理商： | UPD780023AYCW(A)-XXX |
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31
PD780021A(A), 780022A(A), 780023A(A), 780024A(A), 780021AY(A), 780022AY(A), 780023AY(A), 780024AY(A)
Data Sheet U15131EJ3V0DS
(2) Serial interface SIO3n
Serial interface SIO3n has one mode: 3-wire serial I/O mode.
3-wire serial I/O mode (fixed as MSB first)
This is an 8-bit data transfer mode using three lines: a serial clock line (SCK3n), serial output line (SO3n),
and serial input line (SI3n).
Since simultaneous transmit and receive operations are enabled in the 3-wire serial I/O mode, the
processing time for data transfer is reduced.
The first bit in 8-bit data in the serial transfer is fixed as MSB.
The 3-wire serial I/O mode is useful for connection to peripheral I/O devices, and display controllers, etc.,
that include a clocked serial interface.
Figure 5-10. Block Diagram of Serial Interface SIO3n
Remark
PD780024A Subseries: n = 0, 1
PD780024AY Subseries: n = 0
Internal bus
8
Serial clock
controller
Serial clock
counter
Interrupt request
signal generator
Selector
Serial I/O shift register
3n (SIO3n)
SI3n
SO3n
SCK3n
INTCSI3n
fX/23
fX/24
fX/25
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