SC16IS752IBS,157 NXP Semiconductors, SC16IS752IBS,157 Datasheet - Page 38

• Manufacturer Part Number: SC16IS752IBS,157
• Description: IC DUAL UART 64BYTE 32HVQFN
• Manufacturer: NXP Semiconductors

Specifications of SC16IS752IBS,157

• Features: Low Current
• Number Of Channels: 2, DUART
• Fifo's: 64 Byte
• Protocol: RS232, RS485
• Voltage - Supply: 2.5V, 3.3V
• With Auto Flow Control: Yes
• With Irda Encoder/decoder: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN Exposed Pad
• For Use With: 568-4000 - DEMO BOARD SPI/I2C TO DUAL UART568-3510 - DEMO BOARD SPI/I2C TO UART
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935279288157; SC16IS752IBS; SC16IS752IBS

NXP Semiconductors
SC16IS752_SC16IS762_7
Product data sheet
Fig 17. I
master write:
master read:
combined
formats:
2
C-bus data formats
START condition
START condition
START condition
S
S
S
SLAVE ADDRESS
SLAVE ADDRESS
SLAVE ADDRESS
In a single master system, the ‘Repeated START’ mechanism may be more efficient than
terminating each transfer with a STOP and starting again. In a multimaster environment,
the determination of which format is more efficient could be more complicated, as when a
master is using repeated STARTs occupies the bus for a long time, and thus preventing
other devices from initiating transfers.
read or
write
write
read
R/W
W
R
acknowledge
acknowledge
acknowledge
A
A
A
(n bytes + acknowledge)
data transferred
DATA
DATA
DATA
Dual UART with I
Rev. 07 — 19 May 2008
acknowledge
(n bytes + acknowledge)
(n bytes + acknowledge)
data transferred
data transferred
A
acknowledge
A
acknowledge
A
Sr
repeated
START condition
2
SLAVE ADDRESS
SC16IS752/SC16IS762
C-bus/SPI interface, 64-byte FIFOs, IrDA SIR
DATA
DATA
may change at this point
acknowledge
acknowledge
STOP condition
STOP condition
direction of transfer
not
NA
read or
A
write
R/W
P
P
acknowledge
A
(n bytes + acknowledge)
data transferred
DATA
© NXP B.V. 2008. All rights reserved.
acknowledge
STOP condition
002aab458
A
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P