參數(shù)資料
型號(hào): UPD75312
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機(jī)
文件頁數(shù): 28/62頁
文件大?。?/td> 577K
代理商: UPD75312
μ
P
2
Internal bus
8/4
8
8
8
CSIM
P03/SI/SB1
P02/SO/SB0
P01/SCK
P01
output
latch
S
S
Bit
test
Slave address register
(SVA)
Address comparator
Shift register (SIO)
SET CLR
Bit manipulation
(8)
(8)
Coincidence
signal
SBIC
RELT
CMDT
SO latch
Bit test
A
A
B
Busy/
acknowledge
output
circuit
Bus release/
command/
acknowledge
detector
circuit
RELD
CMDD
ACKD
Serial clock
counter
Serial clock
control
circuit
INTCSI
control
circuit
Serial clock
selector
INTCSI
IRQCSI
set signal
(
)
D
Q
f
X
/2
3
f
X
/2
4
f
X
/2
6
TOUT F/F
(from timer/
event counter)
External SCK
(8)
Fig. 5-6 Serial Interface Block Diagram
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