參數(shù)資料
型號(hào): HS4339ESS01H
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-Series microcomputer with large-capacity memory
中文描述: 4位HMCS400系列的大容量存儲(chǔ)器微機(jī)
文件頁(yè)數(shù): 50/78頁(yè)
文件大?。?/td> 337K
代理商: HS4339ESS01H
HD404339 Series
50
Serial Interface
The MCU has a one-channel serial interface built in with the following features.
One of 13 different internal clocks or an external clock can be selected as the transmit clock. The
internal clocks include the six prescaler outputs divided by two and by four, and the system clock.
During idle status, the serial output pin can be controlled to be high or low output
Transmit clock errors can be detected
An interrupt request can be generated after transfer has completed when an error occurs
I
Port mode
register C
(PMRC)
SCK
Selector
System
clock
PER
Prescaler S (PSS)
Idle
controller
3
Serial mode
register
(SMR)
Clock
Serial data
register (SR)
Serial interrupt
request flag
(IFS)
S
1/2
1/2
SI
SO
Octal
counter (OC)
I/O
controller
Transfer
control
signal
2
÷
8
÷
3
÷
1
÷
5
÷
2
÷
Figure 38 Serial Interface Block Diagram
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