Rainbow Electronics AT91CAP9S250A - Manual (Page 839)

839
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
42.5.26.19 SQE Test Errors Register
Register Name: EMAC_STE
Access Type: Read/Write
• SQER: SQE test errors
An 8-bit register counting the number of frames where col was not asserted within 96 bit times (an interframe gap) of
tx_en being deasserted in half duplex mode.
42.5.26.20 Received Length Field Mismatch Register
Register Name: EMAC_RLE
Access Type: Read/Write
• RLFM: Receive Length Field Mismatch
An 8-bit register counting the number of frames received that have a measured length shorter than that extracted from its
length field. Checking is enabled through bit 16 of the network configuration register. Frames containing a type ID in bytes
13 and 14 (i.e., length/type ID
≥
0x0600) are not counted as length field errors, neither are excessive length frames.
31 30 29 28 27 26 25 24
– – – – – – – –
23 22 21 20 19 18 17 16
– – – – – – – –
15 14 13 12 11 10 9 8
– – – – – – – –
7 6 5 4 3 2 1 0
SQER
31 30 29 28 27 26 25 24
– – – – – – – –
23 22 21 20 19 18 17 16
– – – – – – – –
15 14 13 12 11 10 9 8
– – – – – – – –
7 6 5 4 3 2 1 0
RLFM