cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 305

• Manufacturer Part Number: cs5535
• Description: Geode Cs5535 Companion Multi-function South Bridge
• Manufacturer: National Semiconductor Corporation

Revision 0.8
DIVIL Register Descriptions
31:17
Bit
7:6
32
16
15
14
13
12
11
10
9
8
5
4
3
2
1
0
Name
LB_ADAP_BAD_
FLAG
RSVD
LPC_EXCP_EN
SHTDWN_
ERR_EN
NAND_DIST_
ERR_EN
RSVD
DMA_DMA_
ERR_EN
LPC_DMA_
ERR_EN
RSVD
UART2_DMA_
ERR_EN
UART1_DMA
_ERR_EN
RSVD
LPC_MAST_
ERR_EN
LPC_SLV_
ERR_EN
MAST_RESP_
EXCEP_EN
REPEAT_SSMI_
ERR_EN
DECODE_
ERR_EN
LB_ADAP_
BAD_EN
DIVIL_GLD_MSR_ERROR Bit Descriptions (Continued)
Description
LBus Adapter Bad Flag. If high, records that an ERR was generated due to the
GeodeLink Adapter detected an error at the GeodeLink interface (e.g., packet type not
supported). LB_ADAP_BAD_EN (bit 0) 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 Exception Enable. Write 1 to enable EXCEP bit in response packet for LPC
address errors.
Shutdown Error Enable. Write 1 to enable SHTDWN_ERR_FLAG (bit 47) and to allow
a Shutdown cycle to generate an ERR.
NAND Distract Error Enable. Write 1 to enable NAND_DIST_ERR_FLAG (bit 46) and
to allow a NAND distract error to generate an ERR.
Reserved. Reads return 0. Writes have no effect.
8237 DMA Error Enable. Write 1 to enable DMA_DMA_ERR_FLAG (bit 44) and to
allow an access on the 8237s during DMA to generate an ERR.
LPC DMA Error Enable. Write 1 to enable LPC_DMA_ERR_FLAG (bit 43) and to
allow an LPC access during DMA an LPC access during DMA to generate an ERR.
Reserved. Reads return 0. Writes have no effect.
UART2 DMA Error Enable. Write 1 to enable UART2_DMA_ERR_FLAG (bit 41) and
to allow UART2 accesses during DMA to generate an ERR.
UART1 DMA Error Enable. Write 1 to enable UART1_DMA_ERR_FLAG (bit 40) and
to allow UART1 accesses during DMA to generate an ERR.
Reserved. Reads return 0. Writes have no effect.
LPC Master Error Enable. Write 1 to enable LPC_MAST_ERR_FLAG (bit 37) and to
allow Master <=> GeodeLink Adapter transactions to generate an ERR.
LPC Slave Error Enable. Write 1 to enable LPC_SLV_ERR_FLAG (bit 36) and to allow
Slave <=> GeodeLink Adapter transactions to generate an ERR.
Master Response Exception Enable. Write 1 to enable MAST_RESP_EXCEP_FLAG
(bit 35) and to allow when the GeodeLink Adapter detects the EXCEP bit set in a local
bus master response packet to generate an ERR.
Repeat SSMI Error Enable. Write 1 to enable REPEAT_SSMI_ERR_FLAG (bit 34)
and to allow when a second SSMI occurs on an address before the first was cleared to
generate an ERR.
Decode Error Enable. Write 1 to enable FLAG bits [54:52] and to allow when one or
more devices are decoded to the same address during the address decode cycle to
generate an ERR.
LBus Adapter Bad Enable. Write 1 to enable LB_ADAP_BAD_FLAG (bit 32) and to
allow when the GeodeLink Adapter detects an error at the GeodeLink interface to gen-
erate an ERR.
(Continued)
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