cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 304
cs5535
Manufacturer Part Number
cs5535
Description
Geode Cs5535 Companion Multi-function South Bridge
Manufacturer
National Semiconductor Corporation
Datasheet
1.CS5535.pdf
(555 pages)
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DIVIL Register Descriptions
51:48
39:38
Bit
53
52
47
46
45
44
43
42
41
40
37
36
35
34
33
Name
MEM_LBAR_
DECODE_
ERR_FLAG
IO_LBAR_
DECODE_ERR_
FLAG
RSVD
SHTDWN_
ERR_FLAG
NAND_DIST_
ERR_FLAG
RSVD
DMA_DMA_
ERR_FLAG
LPC_DMA_
ERR_FLAG
RSVD
UART2_DMA_
ERR_FLAG
UART1_DMA_
ERR_FLAG
RSVD
LPC_MAST_
ERR_FLAG
LPC_SLV_
ERR_FLAG
MAST_RESP_
EXCEP_FLAG
REPEAT_SSMI_
ERR_FLAG
DECODE_ERR_
FLAG
DIVIL_GLD_MSR_ERROR Bit Descriptions (Continued)
Description
Memory LBAR Decode Error Flag. If high, records that an ERR was generated due to
a collision between one memory LBAR and another memory LBAR hit. In this case, NO
chip select is generated and DECODE_ERR_FLAG (bit 33) is asserted.
DECODE_ERR_EN (bit 1) must be high to generate ERR and set flag. Write 1 to clear;
writing 0 has no effect.
I/O LBAR Decode Error Flag. If high, records that an ERR was generated due to a col-
lision between one I/O LBAR and another I/O LBAR hit. In this case, NO chip select is
generated and DECODE_ERR_FLAG (bit 33) is asserted.DECODE_ERR_EN (bit 1)
must be high to generate ERR and set flag. Write 1 to clear; writing 0 has no effect.
Reserved. Reads return 0. Writes have no effect.
Shutdown Error Flag. If high, records that an ERR was generated due to a Shutdown
cycle occurrence. SHTDWN_ERR_EN (bit 15) must be high to generate ERR and set
flag. Write 1 to clear; writing 0 has no effect.
NAND Distract Error Flag. If high, records that an ERR was generated due to a NAND
distract error. NAND_DIST_ERR_EN (bit 14) must be high to generate ERR and set
flag. Write 1 to clear; writing 0 has no effect.
Reserved. Reads return 0. Writes have no effect.
8237 DMA Error Flag. If high, records that an ERR was generated due to an access on
the 8237s during DMA. DMA_DMA_ERR_EN (bit 12) must be high to generate ERR
and set flag. Write 1 to clear; writing 0 has no effect.
LPC DMA Error Flag. If high, records that an ERR was generated due to an LPC
access during DMA. LPC_DMA_ERR_EN (bit 11) must be high to generate ERR and
set flag. Write 1 to clear; writing 0 has no effect.
Reserved. Reads return 0. Writes have no effect.
UART2 DMA Error Flag. If high, records that an ERR was generated due to a UART2
access during DMA. UART2_DMA_ERR_EN (bit 9) must be high to generate ERR and
set flag. Write 1 to clear; writing 0 has no effect.
UART1 DMA Error Flag. If high, records that an ERR was generated due to a UART1
access during DMA. UART1_DMA_ERR_EN (bit 8) must be high to generate ERR and
set flag. Write 1 to clear; writing 0 has no effect.
Reserved. Reads return 0. Writes have no effect.
LPC Master Error Flag. If high, records that an ERR was generated on the LPC due to
a Master <=> GeodeLink Adapter transaction. LPC_MAST_ERR_EN (bit 5) must be
high to generate ERR and set flag. Write 1 to clear; writing 0 has no effect.
LPC Slave Error Flag. If high, records that an ERR was generated on the LPC due to
a Slave <=> GeodeLink Adapter transaction. LPC_SLV_ERR_EN (bit 4) must be high
to generate ERR and set flag. Write 1 to clear; writing 0 has no effect.
Master Response Exception Flag. If high, records that an ERR was generated due to
the GeodeLink Adapter detecting the EXCEP bit set in a local bus master response
packet. MAST_RESP_EXCP_EN (bit 3) must be high to generate ERR and set flag.
Write 1 to clear; writing 0 has no effect.
Repeat SSMI Error Flag. If high, records that an ERR was generated due to a second
SSMI occurring on an address before the first was cleared. REPEAT_SSMI_ERR_EN
(bit 2) must be high to generate ERR and set flag. Write 1 to clear; writing 0 has no
effect.
Decode Error Flag. If high, records that an ERR was generated during the address
decode cycle due to one or more devices being decoded to the same address. Bits
[54:52] record further information about this type of error. DECODE_ERR_EN (bit 1)
must be high to generate ERR and set flag. Write 1 to clear; writing 0 has no effect.
(Continued)
304
Revision 0.8
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