6. Appendix
70
BX-956S User’s manual
Table 6.3. Function of Each Register < 4 / 4 >
MSR : Modem Status Register
D7
D6
D5
D4
D3
D2
D1
D0
03FEH
I/O address
Description
SCR : Scratchpad Register
03FFH
DCD RI DSR CTS
DDCD TERI DDSR DCTS
Delta CTS
Delta DSR
Trailing edge RI
Delta data carrier detect
CTS
DSR
RI
DCD
This is an 8-bit, readable/writable register which is available to the user to
allow data to be saved temporarily.
Содержание BX-956SD-DC 781724
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