參數(shù)資料
型號： UPD6708
廠商： NEC Corp.
英文描述： IEBusa Inter Equipment Busa PROTOCOL CONTROL LSI
中文描述： IEBusa設(shè)備布薩間協(xié)議控制大規(guī)模集成電路
文件頁數(shù)： 26/72頁
文件大?。?/td> 292K
代理商： UPD6708
26
μ
PD6708
4.2.2
Switching through software control
With the C/D pin at the high level and the R/W pin at the low level, the host interface mode can be switched from the
host controller by setting bits 5 and 4 of CMR to the values shown in Table 4-5.
Table 4-5. Switching Host Interface Mode by Software Control
Bit 5
Bit 4
Host Interface Mode
0
0
Mode switching by pin control
0
1
Data write mode
1
0
Data read mode
1
1
Status read mode
After one byte of data has been forwarded, the host interface mode will become the command write mode, which is
controlled by the C/D and R/W pins.
Figure 4-3. Example of Host Controller Connections by Software Control
IEBus
120
120
5 V
12 MHz
5 V
Power Supply
Voltage Detection
Circuit
PD6708
μ
V
DD
AV
DD
BUS+
BUS–
XI
XO
GND
TEST
SCK
SI
SO
IRQ
C/D
R/W
CS
RESET
SCK
SO
SI
INT
Host Controller
5 V
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPD6708CX 制造商:NEC 制造商全稱:NEC 功能描述:IEBusa Inter Equipment Busa PROTOCOL CONTROL LSI
UPD6708GS 制造商:NEC 制造商全稱:NEC 功能描述:IEBusa Inter Equipment Busa PROTOCOL CONTROL LSI
UPD6708GS(A) 制造商:Renesas Electronics Corporation 功能描述:
UPD67100 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ASIC
UPD67101 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ASIC
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