16.17.2.4 NFC Data Status

Name: NFCDATA_STATUS
Property: Read-only

Bit 3130292827262524 
     NFCBUSYNFCWRDATAENCSID[2] 
Access RRRR 
Reset  
Bit 2322212019181716 
 CSID[1:0]ACYCLE[2:0]VCMD2CMD2[7:6] 
Access RRRRRRRR 
Reset  
Bit 15141312111098 
 CMD2[5:0]CMD1[7:6] 
Access RRRRRRRR 
Reset  
Bit 76543210 
 CMD1[5:0]   
Access RRRRRR 
Reset  

Bit 27 – NFCBUSY NFC Busy Status Flag

If set to true, it indicates that the NFC is busy.

Bit 26 – NFCWR NFC Write Enable

ValueDescription
0 NFC is in Read mode.
1 NFC is in Write mode.

Bit 25 – DATAEN NFC Data Phase Enable

When set to true, the NFC data phase is enabled.

Bits 24:22 – CSID[2:0] Chip Select Identifier

Chip select used.

Bits 21:19 – ACYCLE[2:0] Number of Address Cycles Required for the Current Command

When ACYCLE is different from zero, ACYCLE Address cycles are performed after Command Cycle 1.

Bit 18 – VCMD2 Valid Cycle 2 Command

When set to true, the CMD2 field is issued after the address cycle.

Bits 17:10 – CMD2[7:0] Command Register Value for Cycle 2

When VCMD2 bit is set to true, the Physical Memory Interface drives the IO bus with CMD2 field during the Command Latch cycle 2.

Bits 9:2 – CMD1[7:0] Command Register Value for Cycle 1

When a Read or Write Access occurs, the Physical Memory Interface drives the IO bus with CMD1 field during the Command Latch cycle 1.