參數(shù)資料
型號(hào): uPD750068CU
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 4位單晶片微控制器
文件頁(yè)數(shù): 32/82頁(yè)
文件大?。?/td> 460K
代理商: UPD750068CU
32
μ
PD750064, 750066, 750068, 750064(A), 750066(A), 750068(A)
Data Sheet U10165EJ2V0DS00
6.8 Serial Interface
The serial interface has the following three modes.
Operation stop mode
3-wire serial I/O mode
2-wire serial I/O mode
The 3-wire serial I/O mode enables connections to be made with the 75X Series, 78K Series, and many other
types of I/O devices. The 2-wire serial I/O mode enables communication with two or more devices.
Figure 6-8. Serial Interface Block Diagram
Internal bus
8/4
Bit
test
P03/SI/SB1
P02/SO/SB0
P01/SCK
8
8
SBIC
RELT
CMDT
SET CLR
D
Q
(8)
INTCSI
f
X
/2
3
f
X
/2
4
f
/2
6
TOUT0
From
timer/event
counter 0
IRQCSI
set signal
P01
Output
latch
S
S
Serial
clock
counter
Serial clock
control circuit
Serial
clock
selector
SO
latch
Shift register (SIO)
External
SCK
Bit
manipu-
lation
INTCSI
control
circuit
CSIM
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