CS5535 datasheet(234/555 Pages) NSC

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234

Revision 0.8

ACC Register Descriptions (Continued)

5.3.1.3

GeodeLink Device SMI MSR (ACC_GLD_MSR_SMI)

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. (See Section 3.8.3 "MSR Address 2: SMI Control" on page 67 for

further SMI/ASMI generation details.)

15:14

DISCARD

Read Prefetch Discard Policy.

00: Reserved.

01: Discard all data not taken under current local bus grant.

10: Discard all data on any local bus transaction.

11: Discard all data on any local bus write transaction. Always use this value.

NON_COH_WR

Non-Coherent Write.

0: Write requests are coherent.

1: Write requests are non-coherent. Always use this value.

NON_COH_RD

Non-Coherent Read.

0: Read requests are coherent.

1: Read requests are non-coherent. Always use this value.

11:7

RSVD

Reserved. Reads as 0.

6:4

PRI

Priority Level. Always write 0.

RSVD (RO)

Reserved (Read Only). Returns 0.

2:0

PID

Priority ID. Always write 0.

MSR Address

51500002h

Type

R/W

Reset Value

00000000_00000000h

ACC_GLD_MSR_SMI 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

ACC_GLD_MSR_SMI Bit Descriptions

Bit

Name

Description

63:33

RSVD

Reserved. Reads return 0.

IRQ_SSMI_FLAG

IRQ SSMI Flag. If high, records that an SSMI was generated because the ACC inter-

rupt signal transitioned from 0 to 1. This bit is unaffected when the interrupt transitions

from 1 to 0. Write 1 to clear; writing 0 has no effect. IRQ_SSMI_EN (bit 1) must be set

to enable this event and set flag.

31:1

RSVD

Reserved. Reads return 0.

ACC_GLD_MSR_CONFIG Bit Descriptions (Continued)

Bit

Name

Description

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