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SC18IM700IPW датащи(PDF) 8 Page - NXP Semiconductors

номер детали SC18IM700IPW
подробное описание детали  Master I-2C - bus controller with UART interface
PDF  21 Pages
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производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

SC18IM700IPW датащи(HTML) 8 Page - NXP Semiconductors

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SC18IM700_1
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 01 — 28 February 2006
8 of 21
Philips Semiconductors
SC18IM700
Master I2C-bus controller with UART interface
8.
I2C-bus serial interface
The I2C-bus uses two wires (SDA and SCL) to transfer information between devices
connected to the bus, and it has the following features:
• Bidirectional data transfer between masters and slaves
• Multi-master bus (no central master)
• Arbitration between simultaneously transmitting masters without corruption of serial
data on the bus
• Serial clock synchronization allows devices with different bit rates to communicate via
one serial bus
• Serial clock synchronization can be used as a handshake mechanism to suspend and
resume serial transfer.
A typical I2C-bus configuration is shown in Figure 12. The SC18IM700 device provides a
byte-oriented I2C-bus interface that supports data transfers up to 400 kHz.
9.
Internal registers available
9.1 Register summary
Fig 12. I2C-bus configuration
RPU
002aab801
VDD
SC18IM700
I2C-BUS
DEVICE
I2C-BUS
DEVICE
I2C-bus
SDA
SCL
RPU
Table 4:
Internal registers summary
Register
address
Register
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
General register set
0x00
BRG0
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
0x01
BRG1
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
0x02
PortConf1
GPIO3.1
GPIO3.0
GPIO2.1
GPIO2.0
GPIO1.1
GPIO1.0
GPIO0.1
GPIO0.0
R/W
0x03
PortConf2
GPIO7.1
GPIO7.0
GPIO6.1
GPIO6.0
GPIO5.1
GPIO5.0
GPIO4.1
GPIO4.0
R/W
0x04
IOState
GPIO7
GPIO6
GPIO5
GPIO4
GPIO3
GPIO2
GPIO1
GPIO0
R/W
0x05
reserved
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
-
0x06
I2CAdr
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
0x07
I2CClkL
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
0x08
I2CClkH
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
0x09
I2CTO
TO7
TO6
TO5
TO4
TO3
TO2
TO1
TE
R/W
0x0A
I2CStat
1111
I2CStat[3] I2CStat[2] I2CStat[1] I2CStat[0] R



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