參數(shù)資料
型號: μPD78074B
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位單片機微控制器(8位單片微控制器)
文件頁數(shù): 29/76頁
文件大小: 568K
代理商: ΜPD78074B
29
μ
PD78074B, 78075B
P127
P120
Output trigger
control circuit
INTP2
INTTM1
INTTM2
Output latch
Real-time output
buffer register
lower 4 bits
(RTBL)
Real-time output
buffer register
higher 4 bits
(RTBH)
Internal bus
Real-time output port mode
register (RTPM)
Figure 5-13. Serial Interface Channel 2 Block Diagram
5.9 Real-Time Output Port
Data set previously in the real-time output buffer register is transferred to the output latch by hardware concurrently
with timer interrupt request or external interrupt request generation in order to output to off-chip. This is a real-time
output function. Pins used to output to off-chip are called real-time output ports.
By using a real-time output port, a signal which has no jitter can be output. This is most applicable to control of
stepping motor, etc.
Figure 5-14. Real-Time Output Port Block Diagram
Receive buffer
register (RXB/SIO2)
Internal bus
Direction control
circuit
Direction control
circuit
Transmit shift
register (TXS/SIO2)
Receive shift
register (RXS)
Receive control
circuit
Transmit control
circuit
SCK output
control circuit
Baud rate
generator
INTSER
INTSR/INTCSI2
INTST
f
XX
to f
XX
/2
10
ASCK/SCK2/P72
T
X
D/SO2/P71
R
X
D/SI2/P70
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