參數(shù)資料
型號: μPD780306
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁數(shù): 25/70頁
文件大小: 525K
代理商: ΜPD780306
μ
PD780306, 780308
25
Figure 5-9. Serial Interface Channel 0 Block Diagram
5.7
SERIAL INTERFACE
Three clocked serial interface channels are incorporated.
Serial interface channel 0
Serial interface channel 2
Serial interface channel 3
Table 5-3. Serial Interface Channel Block Diagram
3-wire serial I/O mode
SBI (serial bus interface) mode
2-wire serial I/O mode
Asynchronous serial interface
(UART) mode
(MSB/LSB-first switchable)
(MSB-first)
(MSB-first)
(MSB/LSB-first switchable)
(With dedicated baud rate
generator, data I/O pin
switch function)
(MSB/LSB-first switchable)
Function
Serial Interface Channel 0
Serial Interface Channel 2
Serial Interface Channel 3
SI0/SB0/P25
SO0/SB1/P26
SCK0/P27
INTCSI0
TO2
f
XX
/2-f
XX
/2
8
Internal bus
Selector
Selector
Serial I/O
shift register 0 (SIO0)
Output
latch
Busy/acknowledge
output circuit
Bus release/command/
acknowledge detector
Serial clock counter
Interrupt request
signal generator
Serial clock control circuit
Selector
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