參數(shù)資料
型號(hào): UPD75402A
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): 19/48頁
文件大?。?/td> 515K
代理商: UPD75402A
1
μ
P
Fig. 5-4 Block Diagram of the Serial Interface
8
Bit
test
CSIM
Selector
Internal bus
8
8
Slave address
register (SVA)
Address comparator
Shift register (SIO)
Bus-release/
command/
acknowledge
detector
Serial clock
counter
Serial clock
control
circuit
MPX
f
XX
/2
4
INTCSI
IRQCSI
Set signal
INTCSI
control
circuit
Busy/
acknowl-
edge
output
circuit
P03/SI
P02 /SO/SB0
P01/SCK
(8)
(8)
Match
signal
(8)
Bit manipulation
RELT
CMDT
SBIC
Bit test
SET CLR
D
Q
RELD
CMDD
ACKD
A
A
B
SO
Iatch
External SCK
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