NXP Semiconductors KE1xF Series, Reference Manual, Page: 1268 / 1483

LPI2Cx_SCFGR1 field descriptions (continued)
Field Description
0 Disables match on SMBus Alert.
1 Enables match on SMBus Alert.
8
GCEN
General Call Enable
0 General Call address is disabled.
1 General call address is enabled.
7–4
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
3
ACKSTALL
ACK SCL Stall
Enables SCL clock stretching during slave-transmit address byte(s) and slave-receiver address and data
byte(s) to allow software to write the Transmit ACK Register before the ACK or NACK is transmitted. Clock
stretching occurs when transmitting the 9th bit and is therefore not compatible with high speed mode.
When ACKSTALL is enabled, there is no need to set either RXSTALL or ADRSTALL
0 Clock stretching disabled.
1 Clock stretching enabled.
2
TXDSTALL
TX Data SCL Stall
Enables SCL clock stretching when the transmit data flag is set during a slave-transmit transfer. Clock
stretching occurs following the 9th bit and is therefore compatible with high speed mode.
0 Clock stretching disabled.
1 Clock stretching enabled.
1
RXSTALL
RX SCL Stall
Enables SCL clock stretching when receive data flag is set during a slave-receive transfer. Clock
stretching occurs following the 9th bit and is therefore compatible with high speed mode.
0 Clock stretching disabled.
1 Clock stretching enabled.
0
ADRSTALL
Address SCL Stall
Enables SCL clock stretching when the address valid flag is asserted. Clock stretching only occurs
following the 9th bit and is therefore compatible with high speed mode.
0 Clock stretching disabled.
1 Clock stretching enabled.
47.3.23 Slave Configuration Register 2 (LPI2Cx_SCFGR2)
The SCFGR2 should only be written when the I2C Slave is disabled.
Address: Base a 128h offset
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
0
FILTSDA
0
FILTSCL
0
DATAVD
0
CLKHOLD
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Memory Map and Registers
Kinetis KE1xF Sub-Family Reference Manual, Rev. 4, 06/2019
1268 NXP Semiconductors