參數(shù)資料
型號(hào): UPD784021
廠商: NEC Corp.
英文描述: 16/8-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 16/8-BIT單片機(jī)
文件頁(yè)數(shù): 40/90頁(yè)
文件大?。?/td> 614K
代理商: UPD784021
40
m
PD784020, 784021
8.8.2 Synchronous Serial Interface (CSI)
With this interface, the master device makes the serial clock active to start transmission, then transfers 1-byte data
in phase with the clock.
Fig. 8-12 Block Diagram of Synchronous Serial Interface
Remark
f
CLK
: Internal system clock frequency (system clock frequency/2)
Direction
control circuit
S
Shift register
Set
Clear
Output latch
Serial clock
counter
Serial clock
control circuit
S
TM 3 output/2
f
CLK
/8
f
CLK
/32
INTCSI
SCK0
SI0
SO0/SB0
Internal bus
Interrupt signal
generation
circuit
Busy/
acknowledge
detection
circuit
Bus release/
command/
acknowledge
detection
circuit
SIO
N-ch open-drain
output enabled
(when SB0 or
SBI mode is used)
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