CS5535 datasheet(251/555 Pages) NSC

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ATAC Register Descriptions (Continued)

5.4.1.4

GeodeLink Device Error MSR (ATAC_GLD_MSR_ERROR)

The flags are set by internal conditions. The internal conditions are enabled if the EN bit is 1. Reading the FLAG bit returns

the value; writing 1 clears the FLAG; writing 0 has no effect.

MSR Address

51300003h

Type

R/W

Reset Value

00000000_00000100h

ATAC_GLD_MSR_ERROR Register Map

63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32

RSVD

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

9876543210

RSVD

ATAC_GLD_MSR_ERROR Bit Descriptions

Bit

Name

Description

63:37

RSVD

Reserved. Write as read.

IDE_PIO_ERR_

FLAG

IDE PIO Error. If high, records that an ERR was generated due to a PIO access during

a DMA command. Write 1 to clear; writing 0 has no effect. IDE_PIO_ERR_EN (bit 4)

must be high to generate ERR and set flag.

If IDE_PIO_ERR_EN = 1 and IDE_PIO_ASMI_EN (MSR 51300002h[0]) = 0 and the

error occurs, this bit gets set, and the GLCP master error signal is asserted.

If both IDE_PIO_ERR_EN = 1 and IDE_PIO_ASMI_EN = 1 and the error occurs, this

bit gets set, the GLCP master error signal is asserted, and an SSMI is generated.

RESP_EXCEP_

ERR_FLAG

Response Exception Error Flag. If high, records that an ERR was generated and the

GLCP master error signal was asserted due to the EXCEP bit being set in the response

packet. Write 1 to clear; writing 0 has no effect. RESP_EXCEP_ERR_EN (bit 3) must

be high to enable these events.

SSMI_ERR_FLAG

SSMI Error Flag. If high, records that an ERR was generated due to an uncleared

SSMI. Write 1 to clear; writing 0 has no effect. SSMI_ERR_EN (bit 2) must be high to

generate ERR and set flag.

If SSMI_ERR_EN and IDE_PIO_SSMI_FLAG (MSR 51300002h[32]) = 1 and the error

occurs, this bit gets set, the GLCP master error signal is asserted, lb_slav_rdy is

asserted, and an SSMI is generated.

BLOCKIO_SSMI_

FLAG

SSMI on I/O write during DMA. If high, records that an I/O write during DMA had

occurred. Write 1 to clear; writing 0 has no effect. BLOCKIO_SSMI_EN (bit 1) and

BLOCKIO (bit 8) must be high to set flag.

CS5535 Datasheet(PDF) 251 Page - National Semiconductor (TI)

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