Datasheet

38.8.104 GMAC Receive Buffer Size Register Priority Queue x
Name: GMAC_RBSRPQx
Offset: 0x04A0 + (x-1)*0x04 [x=1..5]
Reset: 0x00000002
Property: Read/Write
Bit 31 30 29 28 27 26 25 24
Access
Reset
Bit 23 22 21 20 19 18 17 16
Access
Reset
Bit 15 14 13 12 11 10 9 8
RBS[15:8]
Access
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
RBS[7:0]
Access
Reset 0 0 0 0 0 0 1 0
Bits 15:0 – RBS[15:0] Receive Buf
fer Size
DMA receive buffer size in AHB system memory. The value defined by these bits determines the size of buffer to use
in main AHB system memory when writing received data.
The value is defined in multiples of 64 Bytes such that a value of 0x01 corresponds to buffers of 64 Bytes, 0x02
corresponds to 128 Bytes etc.
Examples:
• 0x18: 1536 Bytes (1 × max length frame/buffer)
• 0xA0: 10240 Bytes (1 × 10K jumbo frame/buffer)
Note: This value should never be written as zero.
SAM E70/S70/V70/V71 Family
GMAC - Ethernet MAC
© 2019 Microchip T
echnology Inc.
Datasheet
DS60001527D-page 737