NXP Semiconductors K32 L2A Series, Reference Manual, Page: 729 / 1379

LPI2Cx_SASR field descriptions (continued)
Field Description
RADDR[0] } and the second address byte is RADDR[8:1]. The R/W bit is therefore always stored in
RADDR[0].
27.2.26 Slave Transmit ACK Register (LPI2Cx_STAR)
Address: Base a 154h offset
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
R
0
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Bit
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
0
TXNACK
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
LPI2Cx_STAR field descriptions
Field Description
31–1
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
0
TXNACK
Transmit NACK
When NACKSTALL is set, must be written once for each matching address byte and each received word.
Can also be written when LPI2C Slave is disabled or idle to configure the default ACK/NACK.
0 Transmit ACK for received word.
1 Transmit NACK for received word.
27.2.27 Slave Transmit Data Register (LPI2Cx_STDR)
Address: Base a 160h 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
W
Reserved DATA
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
Chapter 27 Low Power Inter-Integrated Circuit (LPI2C)
K32 L2A Reference Manual, Rev. 2, 01/2020
NXP Semiconductors 729