STA450A datasheet(17/66 Pages) STMICROELECTRONICS

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STA450A

Note: NA: Not Applicable, NC: Not Change, R: Read Only, W: Write Only

Note1: These registers must be programmed before the start-up of the DSP (writing in register 0x4D)

2.4 REGISTER DESCRIPTION

HOST_VERSION

Address

: 0x00

Type

: R

Software Reset

: 0x10

Hardware Reset

: 0x10

Description

The VERSION register is read-only and is used to identify the IC cut . The VERSION register holds the

cut number (binary decimal encoded)

HOST_ID

Address

: 0x01

Type

: R

Software Reset

: 0x20

Hardware Reset

: 0x20

Description

The HOST_ID register is read-only and is used to identify the IC on an application board. The ID is fixed

for all IC cut. The STA450A has the ID 0xAC.

HOST @

Name

size

Mode

Reset

Comment

0x67

HOST_EVENTINTE5

8 bits

R – W

EVENT interrupt enable bit [15:8]

0x68

HOST_EVENTINT4

8 bits

R – W

EVENT interrupt value bit [7:8]

0x69

HOST_EVENTINT5

8 bits

R – W

EVENT interrupt value bit [15:8]

0x6A

Reserved

0x6B

AudioDec Result

8 bits

R – W

Audio Decoder Result

0x6C

HOST_MFC

8 bits

R – W

Master Frame counter (MFC) LSB

part (7 bits)

0x6D to

0x7E

Command

8 bits

R – W

0x7F

HOST_PAGE_CTRL

8 bits

R – W

More page indication and number

of byte in the page

0x80 to

0xFF

Data Page

8 bits

R – W

7654

3210

7654

3210

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