Maxim Integrated MAX32660 - Page 149

MAX32660 User Guide
Maxim Integrated Page 149 of 195
I
2
C Interrupt Status Flags 0 Register
I2Cn_INTFL0
[0x0008]
Bits
Name
Access
Reset
Description
8
arberi
R/ W1C
0
Master Mode Arbitration Lost Interrupt Flag
Write 1 to clear. Write 0 has no effect.
0: Condition has not occurred.
1: Condition occurred.
7
adracki
R/ W1C
0
Master Mode: Address ACK from External Slave Interrupt Flag
This field is set when a slave address ACK is received. Write 1 to clear. Write 0 has no
effect.
0: Condition has not occurred.
1: The slave device ACK for the address was received.
6
stopi
R/ W1C
0
Slave Mode: STOP Condition Interrupt Flag
This flag is set by hardware when a STOP condition is detected on the I
2
C bus. Write 1
to clear. Write 0 has no effect.
0: Stop condition has not occurred
1: Stop condition occurred
5
txthi
RO
1
TX FIFO Threshold Level Interrupt Flag
This field is set by hardware if the number of bytes in the Transmit FIFO is less than or
equal to the Transmit FIFO threshold level. Write 1 to clear. This field is automatically
cleared by hardware when the TX FIFO contains fewer bytes than the TX threshold
level.
0: TX FIFO contains more bytes than the TX threshold level.
1: TX FIFO contains TX threshold level or fewer bytes (Default).
4
rxthi
RO
1
RX FIFO Threshold Level Interrupt Flag
This field is set by hardware if the number of bytes in the Receive FIFO is greater than
or equal top the Receive FIFO threshold level. This field is automatically cleared when
the RX FIFO contains fewer bytes than the RX threshold setting.
0: RX FIFO contains fewer bytes than the RX threshold level.
1: RX FIFO contains at least RX threshold level of bytes (Default).
3
ami
R/W1C
0
Slave Mode: Address Match Status Interrupt Flag
In Slave Mode operation, a slave mode address match condition has occurred. Write
1 to clear. Writing 0 has no effect.
0: Slave address match has not occurred.
1: Slave address match occurred.
2
gci
R/W1C
0
Slave Mode: General Call Address Match Received Interrupt Flag
In Slave Mode operation, a general call address match condition has occurred.
Write 1 to clear. Writing 0 has no effect.
0: General call address match has not occurred.
1: General call address match occurred.
1
irxmi
R/W1C
0
Interactive Receive Mode Interrupt Flag
Write 1 to clear. Writing 0 is ignored.
0: Interrupt condition has not occurred.
1: Interrupt condition occurred.
0
donei
R/W1C
0
Transfer Complete Interrupt Flag
This flag is set for both Master and Slave mode for both transmit and receive
operations on the SCL falling edge after an ACK is received or sent. Write 1 to clear.
Writing 0 has no effect.
0: Transfer is not complete.
1: Transfer complete.