SCC2691 Philips Semiconductors, SCC2691 Datasheet - Page 18

• Manufacturer Part Number: SCC2691
• Description: Universal asynchronous receiver/transmitter UART
• Manufacturer: Philips Semiconductors

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Philips Semiconductors
1998 Sep 04
RxRDY/
FFULL
MPO
RECEIVER
ENABLED
RxRDY
(SR0)
FFULL
(SR1)
RDN
OVERRRUN
TRANS-
MITTER
ENABLED
(SR4)
NOTES;
1. Timing shown for MR1[7].
2. Shown for ACR[2:] = 111 and MR1[6] = 0.
Universal asynchronous receiver/transmitter (UART)
TxRDY
(SR2)
WRN
CTSN
(MPI)
RTSN
(MPO)
RxD
RTS
MPO
TxD
NOTES:
1. TIMING SHOWN FOR MR2[4] = 1.
2. TIMING SHOWN FOR MR2[5] = 1.
2
1
1
2
D1
CR[7:4] = 1010
MPO = 1 (CR[7:4] = 1010)
D2
D1
D2
D1
S
D1
D
D2
D3
D2
D3
Figure 10. Transmitter Timing
S = STATUS
D = DATA
Figure 11. Receiver Timing
START
BREAK
D3
18
D4
D4
BREAK
D5 WILL
BE LOST
STOP
BREAK
D5
TRANSMITTED
D4
S
D5 WILL
NOT BE
D2
D6
D
S
D3
D
CR[7:4] = 1010
S
D4
D6
D
D7
Product specification
SCC2691
RESET BY
COMMAND
D6
SD00129
SD00128
D8