Maxim Integrated MAX32660 - Table 12-14: I 2 C Transmit Control Registers 1

MAX32660 User Guide
Maxim Integrated Page 154 of 195
I
2
C Transmit Control Register 0
I2Cn_TXCTRL0
[0x0024]
Bits
Name
Access
Reset
Description
0
txpreld
R/W
0
TX FIFO Preload Mode Enable
0: Normal operation. An address match in Slave Mode, or a General Call address
match, will flush and lock the TX FIFO so it cannot be written and set
I2Cn_INTFL0.txloi.
1: TX FIFO Preload Mode. An address match in Slave Mode, or a General Call
address match, will not lock the TX FIFO and will not set I2Cn_INTFL0.txloi. This
allows firmware to preload data into the TX FIFO. The status of the I
2
C is
controllable at I2Cn_TXCTRL1.txrdy.
Table 12-14: I
2
C Transmit Control Registers 1
I
2
C Transmit Control Register 1
I2Cn_TXCTRL1
[0x0028]
Bits
Name
Access
Reset
Description
31:12
-
R/W
0
Reserved for Future Use
Do not modify this field.
11:8
txfifo
RO
0
Transmit FIFO Byte Count Status
Contains the number of bytes remaining in the TX FIFO
7:6
-
R/W
0
Reserved for Future Use
Do not modify this field.
5
flsh_nack_dis
R/W
0
TX FIFO Auto Flush Disable for NACK
Setting this field to 1 disables the TX FIFO Automatic Flush when a NACK is received
at the end of a slave transaction.
0: The TX FIFO is automatically flushed if a NACK is received at the end of a slave
transaction.
1: The TX FIFO is not flushed when a NACK is received at the end of a slave
transaction.
Note: This field is valid for slave mode operation only and is ignored if the I
2
C mode
is set to master.
4
flsh_sladdr_dis
R/W
0
TX FIFO Auto Flush Disable for Slave Address Match
Setting this field to 1 disables the TX FIFO Automatic Flush when a Slave Address
Match occurs.
0: The TX FIFO is automatically flushed on a Slave Address Match.
1: The TX FIFO is not flushed on a Slave Address Match.
Note: This field is valid for slave mode operation only and is ignored if the I
2
C mode
is set to master.
3
-
R/W
0
Reserved for Future Use
Do not modify this field.
2
flsh_gcaddr_dis
R/W
0
TX FIFO Auto Flush Disable on General Call Address Match
Setting this field to 1 disables the TX FIFO Automatic Flush when a General Call
Address Match occurs.
0: The TX FIFO is automatically flushed on a General Call Address Match.
1: The TX FIFO is not flushed on a General Call Address Match.
Note: This field is valid for slave mode operation only and is ignored if the I
2
C mode
is set to master.