Datasheet

PIC32MZ Embedded Connectivity with Floating Point Unit (EF) Family
DS60001320B-page 416 Preliminary  2015 Microchip Technology Inc.
FIGURE 26-4: FORMAT OF BD_SRCADDR
FIGURE 26-5: FORMAT OF BD_DSTADDR
FIGURE 26-6: FORMAT OF BD_NXTADDR
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31-24 BD_SCRADDR<31:24>
23-16 BD_SCRADDR<23:16>
15-8 BD_SCRADDR<15:8>
7-0 BD_SCRADDR<7:0>
bit 31-0 BD_SCRADDR: Buffer Source Address
The source address of the buffer that needs to be passed through the PE-CRDMA for encryption or
authentication. This address must be on a 32-bit boundary.
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31-24 BD_DSTADDR<31:24>
23-16 BD_DSTADDR<23:16>
15-8 BD_DSTADDR<15:8>
7-0 BD_DSTADDR<7:0>
bit 31-0 BD_DSTADDR: Buffer Destination Address
The destination address of the buffer that needs to be passed through the PE-CRDMA for encryption
or authentication. This address must be on a 32-bit boundary.
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31-24 BD_NXTADDR<31:24>
23-16 BD_NXTADDR<23:16>
15-8 BD_NXTADDR<15:8>
7-0 BD_NXTADDR<7:0>
bit 31-0 BD_NXTADDR: Next BD Pointer Address Has Next Buffer Descriptor
The next buffer can be a next segment of the previous buffer or a new packet.