scc2681t NXP Semiconductors, scc2681t Datasheet - Page 12

• Manufacturer Part Number: scc2681t
• Description: Dual Asynchronous Receiver/transmitter Duart
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2004 Apr 06
Dual asynchronous receiver/transmitter (DUART)
NOTES:
1. Timing shown for MR1(7) = 1.
2. Shown for OPCR(4) = 1 and MR1(6) = 0.
NOTES:
1. Timing shown for MR2(4) = 1.
2. Timing shown for MR2(5) = 1.
TRANSMITTER
RECEIVER
OVERRUN
ENABLED
RxRDY/
RxRDY
FFULL
FFULL
(OP5)
ENABLED
(OP0)
(SR0)
(SR1)
(SR4)
RTS
RDN
RxD
TxRDY
CTSN
RTSN
(SR2)
(OP0)
2
1
WRN
(IP0)
TxD
1
2
OPR(0) = 1
OPR(0) = 1
D1
D1
D2
D1
S
D1
D
D2
S = STATUS
D = DATA
Figure 10. Transmitter Timing
Figure 11. Receiver Timing
D2
D3
D3
Figure 9. Receive
BREAK
START
12
D3
D4
D5 WILL
BE LOST
D4
BREAK
D5
BREAK
STOP
S
D2
D
TRANSMITTED
D6
D4
D5 WILL
NOT BE
S D
D6, D7, D8 WILL BE LOST
D3
S D
D7
D4
OPR(0) = 1
D6
RESET BY
COMMAND
SCC2681T
SD00105
SD00094
D8
D6
Product data