5. Each Component Function
108
BX710 series User’s Manual
* 4007h: Control of RS-485 transmission and reception
D6
D5
D4
D3
D2
D1
D0
D7
rsv*
R/W (Default: XXXX0000b)
RE_GATE TE_GATE TE_SEL
Figure 5.14. RS-485 Transmission and Reception Control Port (4007h)
TE_SEL
: Select the RS-485 transmission enable signal.
0 :
Sets the RTS signal to the RS-485 transmission enable signal. (factory setting)
1 :
Sets the TE_GATE value to the RS-485 transmission enable signal.
TE_GATE : RS-485 transmission enable signal. Valid only when the TE_SEL value is "1."
0 :
RS-485 transmission
Enable (factory setting)
1
:
RS-485
transmission
Disable
RE_GATE : RS-485 transmission enable signal.
0 :
RS-485 reception
Enable (factory setting)
1
:
RS-485
reception
Disable
CAUTION
A bit indicated with "rsv" is used by the system. Do not modify the bit.
RX-(11)
TXD
RTS
RXD
0
1
R
D
TE_GATE
RE_GATE
RS485 Terminator
Control
Enabled : On
Disabled : Off
120k
Ω
RX+(3)
TX-(10)
TX+(2)
0 : Controlled by RTS
TE_SEL
1 : Controlled by TE_GATE
0 :Transmission
prohibited
1 :Transmission
permitted
1 :Transmission
prohibited
0 :Transmission
permitted
1 :Receiving
prohibited
0 :Receiving
permitted
Figure 5.15. Half-Duplex Connection Method
Содержание BX710 Series
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Страница 19: ...2 System Reference 12 BX710 series User s Manual BX 710P4 AC5 Figure 2 3 BX 710P4 AC5 ...
Страница 35: ...3 Hardware Setup 28 BX710 series User s Manual ...
Страница 61: ...4 BIOS Setup 54 BX710 series User s Manual OnChip IDE Device Figure 4 9 On Chip IDE Device ...
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