3 i2c master interrupt enable register (i2cie_m), 4 i2c master data buffer register (i2cbuf_m), 8 .2 .3 i – Maxim Integrated MAX31782 User Manual
Page 79: C master interrupt enable register (i2cie_m) -11, 8 .2 .4 i, C master data buffer register (i2cbuf_m) -11, Cmasterinterruptenableregister(i2cie�m), Cmasterdatabufferregister(i2cbuf�m)
MaximIntegrated 8-11
MAX31782 User’s Guide
Revision 0; 8/11
8.2.3I
2
CMasterInterruptEnableRegister(I2CIE�M)
Address: M1[02h]
8.2.4I
2
CMasterDataBufferRegister(I2CBUF�M)
Address: M1[00h]
*Unrestricted read access. This register can be written to only when I2CBUSY = 0.
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
—
—
—
—
I2CSPIE
—
I2CROIE
I2CGCIE I2CNACKIE
—
I2CAMIE I2CTOIE I2CSTRIE I2CRXIE I2CTXIE I2CSRIE
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Access
r
r
r
r
rw
r
rw
rw
rw
r
rw
rw
rw
rw
rw
rw
BIT
NAME
DESCRIPTION
15:12
—
Reserved . The user should not write to these bits .
11
I2CSPIE
I
2
C Master STOP Interrupt Enable . Setting this bit to 1 enables an interrupt when a STOP condition is
detected (I2CSPI = 1) . Clearing this bit to 0 disables the STOP detection interrupt .
10
—
Reserved . The user should not write to this bit .
9
I2CROIE
I
2
C Master Receiver Overrun Interrupt Enable . Setting this bit to 1 enables an interrupt when a
receiver overrun condition is detected (I2ROI = 1) . Clearing this bit to 0 disables the receiver overrun
detection interrupt .
8
I2CGCIE
This bit has no function when operating in master mode .
7
I2CNACKIE
I
2
C Master NACK Interrupt Enable . Setting this bit to 1 enables an interrupt when a NACK is detect-
ed (I2CNACKI = 1) . Clearing this bit to 0 disables the NACK detection interrupt .
6
—
Reserved . The user should not write to this bit .
5
I2CAMIE
This bit has no function when operating in master mode .
4
I2CTOIE
I
2
C Master Timeout Interrupt Enable . Setting this bit to 1 enables an interrupt when a timeout condi-
tion is detected (I2CTOI = 1) . Clearing this bit to 0 disables the timeout interrupt .
3
I2CSTRIE
I
2
C Master Clock Stretch Interrupt Enable . Setting this bit to 1 enables an interrupt when the clock
stretch interrupt flag is set (I2CSTRI = 1) . Clearing this bit disables the clock stretch interrupt .
2
I2CRXIE
I
2
C Master Receive Ready Interrupt Enable . Setting this bit to 1 enables an interrupt when the receive
ready interrupt flag is set (I2CRXI = 1) . Clearing this bit to 0 disables the receive ready interrupt .
1
I2CTXIE
I
2
C Master Transmit Complete Interrupt Enable . Setting this bit to 1 enables an interrupt when the
transmit complete interrupt flag is set (I2CTXI = 1) . Clearing this bit to 0 disables the transmit com-
plete interrupt .
0
I2CSRIE
I
2
C Master START Interrupt Enable . Setting this bit to 1 enables an interrupt when a START condition
is detected (I2CSRI = 1) . Clearing this bit to 0 disables the START detection interrupt .
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
—
—
—
—
—
—
—
—
D7
D6
D5
D4
D3
D2
D1
D0
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Access
r
r
r
r
r
r
r
r
rw*
rw*
rw*
rw*
rw*
rw*
rw*
rw*
BIT
NAME
DESCRIPTION
15:8
—
Reserved . The user should not write to these bits .
7:0
D[7:0]
Data for I
2
C transfer is read from or written to this location . The I
2
C transmit and receive buffers are
separate but both are addressed at this location .