IC_SLV_DATA_NACK_ONLY
Name: Generate Slave Data NACK Register
Size: 1 bit
Address Offset: 0x84
Read/Write Access: Read/Write
The register is used to generate a NACK for
the data part of a transfer when DW_apb_i2c is
acting as a slave-receiver. This register only
exists when the IC_SLV_DATA_NACK_ONLY parameter
is set to 1. When this parameter disabled, this
register does not exist and writing to the register's
address has no effect.
Dependencies: This register is not applicable when IC_ULTRA_FAST_MODE=1
| Module Instance | Base Address | Register Address |
|---|---|---|
| i_i2c_0_DW_apb_i2c_addr_block1 | 0xFFC02800 | 0xFFC02884 |
| i_i2c_1_DW_apb_i2c_addr_block1 | 0xFFC02900 | 0xFFC02984 |
Size: 32
Offset: 0x84
Access: RW
Important: The value of a reserved bit must be maintained in software. When you modify registers containing reserved bit fields, you must use a read-modify-write operation to preserve state and prevent indeterminate system behavior.
| Bit Fields | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
|
RSVD_IC_SLV_DATA_NACK_ONLY RO 0x0 |
|||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
|
RSVD_IC_SLV_DATA_NACK_ONLY RO 0x0 |
NACK RW 0x0 |
||||||||||||||
IC_SLV_DATA_NACK_ONLY Fields
| Bit | Name | Description | Access | Reset | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 31:1 | RSVD_IC_SLV_DATA_NACK_ONLY |
Reserved bits - Read Only |
RO | 0x0 | ||||||
| 0 | NACK |
Generate NACK. This NACK generation only occurs when DW_apb_i2c is a slave-receiver. If this register is set to a value of 1, it can only generate a NACK after a data byte is received; hence, the data transfer is aborted and the data received is not pushed to the receive buffer. When the register is set to a value of 0, it generates NACK/ACK, depending on normal criteria. 1 = generate NACK after data byte received 0 = generate NACK/ACK normally Reset value: 0x0
|
RW | 0x0 |