Datasheet

2015 Microchip Technology Inc. Preliminary DS60001320B-page 413
PIC32MZ Embedded Connectivity with Floating Point Unit (EF) Family
REGISTER 26-9: CEHDLEN: CRYPTO ENGINE HEADER LENGTH REGISTER
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
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
23:16
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
15:8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
7:0
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
HDRLEN<7:0>
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 31-8 Unimplemented: Read as ‘0
bit 7-0 HDRLEN<7:0>: DMA Header Length bits
For every packet, skip this length of locations and start filling the data.
REGISTER 26-10: CETRLLEN: CRYPTO ENGINE TRAILER LENGTH REGISTER
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
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
23:16
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
15:8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
7:0
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TRLRLEN<7:0>
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 31-8 Unimplemented: Read as ‘0
bit 7-0 TRLRLEN<7:0>: DMA Trailer Length bits
For every packet, skip this length of locations at the end of the current packet and start putting the next
packet.