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UM10503
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© NXP B.V. 2015. All rights reserved.
User manual
Rev. 2.1 — 10 December 2015
1282 of 1441
NXP Semiconductors
UM10503
Chapter 46: LPC43xx/LPC43Sxx I2C-bus interface
[1]
Reset value reflects the data stored in used bits only. It does not include reserved bits content.
CONCLR
WO
0x018
I2C Control Clear Register.
When a one is written to a bit of
this register, the corresponding bit in the I
2
C control register is
cleared. Writing a zero has no effect on the corresponding bit
in the I
2
C control register.
-
MMCTRL
R/W
0x01C
Monitor mode control register.
0x00
ADR1
R/W
0x020
I2C Slave Address Register 1.
Contains the 7-bit slave
address for operation of the I
2
C interface in slave mode, and
is not used in master mode. The least significant bit
determines whether a slave responds to the General Call
address.
0x00
ADR2
R/W
0x024
I2C Slave Address Register 2.
Contains the 7-bit slave
address for operation of the I
2
C interface in slave mode, and
is not used in master mode. The least significant bit
determines whether a slave responds to the General Call
address.
0x00
ADR3
R/W
0x028
I2C Slave Address Register 3.
Contains the 7-bit slave
address for operation of the I
2
C interface in slave mode, and
is not used in master mode. The least significant bit
determines whether a slave responds to the General Call
address.
0x00
DATA_BUFFER RO
0x02C
Data buffer register.
The contents of the 8 MSBs of the DAT
shift register will be transferred to the DATA_BUFFER
automatically after every nine bits (8 bits of data plus ACK or
NACK) has been received on the bus.
0x00
MASK0
R/W
0x030
I2C Slave address mask register 0
. This mask register is
associated with ADR0 to determine an address match. The
mask register has no effect when comparing to the General
Call address (‘0000000’).
0x00
MASK1
R/W
0x034
I2C Slave address mask register 1
. This mask register is
associated with ADR1 to determine an address match. The
mask register has no effect when comparing to the General
Call address (‘0000000’).
0x00
MASK2
R/W
0x038
I2C Slave address mask register 2
. This mask register is
associated with ADR2 to determine an address match. The
mask register has no effect when comparing to the General
Call address (‘0000000’).
0x00
MASK3
R/W
0x03C
I2C Slave address mask register 3
. This mask register is
associated with ADR3 to determine an address match. The
mask register has no effect when comparing to the General
Call address (‘0000000’).
0x00
Table 1083.Register overview: I
2
C0 (base address 0x400A 1000)
…continued
Name
Access Address
offset
Description
Reset
value
[1]
Reference