SP504 Datasheet, PDF (24/31 Pages) Sipex Corporation – WAN Multi-Mode Serial Transceiver

MODE: RS-485
DRIVER
RECEIVER
TDEC₃ TDEC₂ TDEC₁ TDEC₀ RDEC₃ RDEC₂ RDEC₁ RDEC₀
0
1
0
1
0
1
0
1
RD(a) 70
RxD 1
RD(b) 71
RT(a) 37
RxC 20
RT(b) 38
CS(a) 66
CTS 80
CS(b) 67
DM(a) 68
DSR 78
DM (b) 69
RR(a) 35
DCD 19
RR(b) 36
IC(a) 39
RI 21
IC(b) 40
SCT(a) 76
SCT 79
SCTEN 7
SCT(b) 77
RECEIVERS DRIVERS
14 TxD
61 SD(a)
59 SD(b)
13 DTR
58 TR(a)
56 TR(b)
16 RTS
54 RS(a)
52 RS(b)
17 RL
47 RL(a)
45 RL(b)
24 LL
51 LL(a)
49 LL(b)
22 ST
42 ST(a)
44 ST(b)
23 STEN
15 TxC
63 TT(a)
65 TT(b)
6 TTEN
STEN ST TTEN TT SCTEN SCT
1 Disabled 1 Disabled 1 Enabled
0 Enabled 0 Enabled 0 Disabled
Figure 23. Mode Diagram — RS-485
Rev: A Date:1/27/04
SP504 Multi–Mode Serial Transceivers
24
© Copyright 2004 Sipex Corporation