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SCC68681 Datasheet(PDF) 26 Page - NXP Semiconductors

Part # SCC68681
Description  Dual asynchronous receiver/transmitter
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

SCC68681 Datasheet(HTML) 26 Page - NXP Semiconductors

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Philips Semiconductors
Product data
SCC68681
Dual asynchronous receiver/transmitter (DUART)
2004 Apr 06
26
D1
D2
D3
D4
D5
D6
D7
D8
RxD
D6, D7, D8 WILL BE LOST
RECEIVER
ENABLED
RxRDY
(SR0)
FFULL
(SR1)
RxRDY/
FFULL
(OP4)2
CSN
(READ)
STATUS DATA
D1
STATUS DATA
D2
STATUS DATA
D3
STATUS DATA
D4
D5 WILL
BE LOST
OVERRUN
(SR4)
RESET BY COMMAND
RTS1
(OP0)
OPR(0) = 1
NOTES:
1. Timing shown for MR1(7) = 1.
2. Shown for OPCR(4) and MR1(6) = 0.
SD00119
Figure 13. Receive timing
TRANSMITTER
ENABLED
TxD
ADD#1
TxRDY
(SR2)
CSN
(WRITE)
MR1(4+3) = 11
MR1(2) = 1
1
BIT 9
D0
0
BIT 9
ADD#2 1
BIT 9
MASTER STATION
ADD#1 MR1(2) = 0 D0
MR1(2) = 1 ADD#2
RxD
ADD#1 1
BIT 9
D0
0
BIT 9
ADD#2 1
BIT 9
PERIPHERAL STATION
0
BIT 9
0
BIT 9
RECEIVER
ENABLED
RxRDY
(SR0)
CSN
MR1(4:3) = 11
ADD#1
STATUS DATA
D0
STATUS DATA
ADD#2
SD00120
Figure 14. Wake-up mode


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