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PRELIMINARY
S3C6400X RISC MICROPROCESSOR
HSMMC CONTROLLER
27-47
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
NORMAL INTERRUPT STATUS REGISTER
The
Normal Interrupt Status Enable
affects reads of this register, but
Normal Interrupt Signal Enable
does not
affect these reads. An interrupt is generated when the Normal Interrupt Signal Enable is enabled and at least one
of the status bits is set to 1. For all bits except
Card Interrupt
and
Error Interrupt
, writing 1 to a bit clears it;
writing to 0 keeps the bit unchanged. More than one status can be cleared with a single register write. The
Card
Interrupt
is cleared when the card stops asserting the interrupt; that is, when the Card Driver services the
interrupt condition.
Register
Address
R/W
Description
Reset Value
NORINTSTS0 0x7C200030 ROC/RW1C
Normal
Interrupt Status Register (Channel 0)
0x0
NORINTSTS1 0x7C300030 ROC/RW1C
Normal
Interrupt Status Register (Channel 1)
0x0
NORINTSTS2 0x7C400030 ROC/RW1C
Normal
Interrupt Status Register (Channel 2)
0x0
Name Bit
Description
Initial
Value
[15]
Error Interrupt
If any of the bits in the Error Interrupt Status register are set, then this bit is
set. Therefore the Host Driver can efficiently test for an error by checking this
bit first. This bit is read only. (ROC)
‘0’ = No Error
’1’ = Error
0
StaFIA3 [14]
FIFO SD Address Pointer Interrupt 3 Status (RW1C)
‘0’ = Occurred
’1’ = Not Occurred
When the FIFO Address of the SD clock side reaches the FIFO Interrupt
Address register 3 value, this status bit is asserted.
0
StaFIA2 [13]
FIFO SD Address Pointer Interrupt 2 Status (RW1C)
‘0’ = Occurred
’1’ = Not Occurred
When the FIFO Address of the SD clock side reaches the FIFO Interrupt
Address register 2 value, this status bit is asserted.
0
StaFIA1 [12]
FIFO SD Address Pointer Interrupt 1 Status (RW1C)
‘0’ = Occurred
’1’ = Not Occurred
When the FIFO Address of the SD clock side reaches the FIFO Interrupt
Address register 1 value, this status bit is asserted.
0
StaFIA0 [11]
FIFO SD Address Pointer Interrupt 0 Status (RW1C)
‘0’ = Occurred
’1’ = Not Occurred
When the FIFO Address of the SD clock side reaches the FIFO Interrupt
Address register 0 value, this status bit is asserted.
0
StaRWaitIn
t
[10]
Read Wait Interrupt Status (RW1C)
‘0’ = Read Wait Interrupt Occurred
0