Owners manual

Memory
H3 Datasheet(Revision1.2) Copyright© 2015 Allwinner Technology Co.,Ltd.All Rights Reserved. Page 397
Error Bits.
Indicates the type of error that caused a Bus Error. Valid only with Fatal Bus
Error bit (IDSTS[2]) set. This field does not generate an interrupt.
3’b001 – Host Abort received during transmission
3’b010 – Host Abort received during reception
Others: Reserved EB is read-only.
9
R/W
0
ABN_INT_SUM
Abnormal Interrupt Summary.
Logical OR of the following:
IDSTS[2] – Fatal Bus Interrupt
IDSTS[4] – DU bit Interrupt
IDSTS[5] – Card Error Summary Interrupt
Only unmasked bits affect this bit.
This is a sticky bit and must be cleared each time a corresponding bit that
causes AIS to be set is cleared. Writing a 1 clears this bit.
8
R/W
0
NOR_INT_SUM
Normal Interrupt Summary.
Logical OR of the following:
IDSTS[0] – Transmit Interrupt
IDSTS[1] – Receive Interrupt
Only unmasked bits affect this bit.
This is a sticky bit and must be cleared each time a corresponding bit that
causes NIS to be set is cleared. Writing a 1 clears this bit.
7:6
/
/
/
5
R/W
0
ERR_FLAG_SUM
Card Error Summary.
Indicates the status of the transaction to/from the card; also present in
RINTSTS. Indicates the logical OR of the following bits:
EBE – End Bit Error
RTO – Response Timeout/Boot Ack Timeout
RCRC – Response CRC
SBE – Start Bit Error
DRTO – Data Read Timeout/BDS timeout
DCRC – Data CRC for Receive
RE – Response Error
Writing 1 clears this bit.
4
R/W
0
DES_UNAVL_INT
Descriptor Unavailable Interrupt.
This bit is set when the descriptor is unavailable due to OWN bit = 0
(DES0[31] =0). Writing a 1 clears this bit.
3
/
/
/
2
R/W
0
FATAL_BERR_INT
Fatal Bus Error Interrupt.
Indicates that a Bus Error occurred (IDSTS[12:10]). When this bit is set, the
DMA disables all its bus accesses. Writing a 1 clears this bit.
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