CHAPTER 21:Ethernet MAC
632
S6J3200 Series Hardware Manual Document Number: 002-04852 Rev. *G
Bits
Description
.
.
.
.
.
.
0x18
1536 Byte (24 * 64 Byte) one maximum length frame/buffer
.
.
.
.
.
.
0xA0
10240 Byte (160 * 64 Byte) one jumbo frame/buffer
.
.
.
.
.
.
0xFF
16320 Byte (255 * 64 Byte)
[bit15:12] Reserved
Always read "0". Writing has no effect.
[bit11] tx_pbuf_tcp_en: Transmitter IP, TCP and UDP checksum generation offload
enable
Note: Not supported if DMA is configured in TX Partial Store and Forward Mode (i.e.
ETHERNETn_pbuf_txcutthru[31] = 0).
Bit
Description
0
Transmit frame data is unaffected.
1
Transmitter checksum generation engine is enabled, to calculate and substitute checksums for transmit
frames.
[bit10] tx_pbuf_size: Transmitter packet buffer memory size select
This bit selects the amount of memory used for the transmit packet buffer. The reset value of "1"
represents the maximum available TX Packet Buffer Memory size of 16 Kbytes.
Bit
Description
0
Do not use top address bit (8 Kbytes)
1
Use full configured addressable space (16 Kbytes)
[bit9:8] rx_pbuf_size: Receiver packet buffer memory size select
These bits select the amount of memory used for the receive packet buffer. The reset value of "0x3"
represents the maximum available RX Packet Buffer Memory size of 4 Kbytes.
Bits
Description
00
Do not use top three address bits (512 bytes)
01
Do not use top two address bits (1 Kbytes)
10
Do not use top address bit (2 Kbytes)
11
Use full configure addressable space (4 Kbytes)
[bit7:6] Reserved
Always read "0". Always write “0”.
Содержание S6J3200 Series
Страница 1041: ...CHAPTER 28 LCD Controller 1040 S6J3200 Series Hardware Manual Document Number 002 04852 Rev G...
Страница 1044: ...CHAPTER 28 LCD Controller S6J3200 Series Hardware Manual Document Number 002 04852 Rev G 1043...
Страница 1047: ...CHAPTER 28 LCD Controller 1046 S6J3200 Series Hardware Manual Document Number 002 04852 Rev G...
Страница 1050: ...CHAPTER 28 LCD Controller S6J3200 Series Hardware Manual Document Number 002 04852 Rev G 1049...
Страница 1084: ...CHAPTER 28 LCD Controller S6J3200 Series Hardware Manual Document Number 002 04852 Rev G 1083...
Страница 1086: ...CHAPTER 28 LCD Controller S6J3200 Series Hardware Manual Document Number 002 04852 Rev G 1085...
Страница 1088: ...CHAPTER 28 LCD Controller S6J3200 Series Hardware Manual Document Number 002 04852 Rev G 1087...