MAS3519F datasheet(31/92 Pages) MICRONAS

31 / 92 page

DATA SHEET

MAS 35x9F

Micronas

June 30, 2004; 6251-505-1DS

3.3.2.12.Read IC Version (Code 7hex)

With this command the version of the IC is read in two

16 bit words. The first word

n = n3,n2,n1,n0 contains

the IC’s major number (one nibble for each digit). The

second word (

d = d3,d2,d1,d0) returns the version as

shown in Table 3–6.

Example:

Read the version information for MAS 35x9F, derivate

0, order version B2:

<DW 68 70 00

send version command

<DW 69 <DR

and read

35 09

MAS 3509F

01 02 >

derivate 0, version B2

(see Section 2.2. on page 8)

3.3.3. List of DSP Registers

The PSelect_Shadow register in Table 3–7 is used to

switch four RAM areas from data to program usage

and thus enabling the DSP’s program counter to

access downloaded program code stored at these

locations. For normal operation (firmware in ROM),

this register must be kept to zero.

Note: DSP registers not given in Table 3–7 must not

be written.

3.3.4. List of DSP Memory Cells

Among the user interface control memory cells there

are some which have a global meaning and some

which control application specific parts of the DSP

core. In Table 3–8 and Table 3–9, this is reflected by

the key words All, MPEG, and G.729.

Table 3–6: Second word of version information

Bit

Nibble

Content

15:12

IC family derivate

11:8

Coded character of order

version (add 41hex to the

content of d2 to get ASCII)

7:0

d1,d0

Digit of order version

1) send command

2) get version information

SDW

data_write

7,0

0,0

SDW

data_read

d3,d2

d1,d0

n3,n2

n1,n0

0 1

0 2

(hex)

Derivate (0..F)

Version character (0 = “A”,.., F = “P”)

0 2

Version number (01..FF)

Table 3–7: Program Download registers

Address

(hex)

R/W

Function

Mode

Default

(hex)

Name

R/W

Configuration of Variable RAM Areas

Download

Affected RAM area

bit[19]

D0:800 ... D0:BFF

bit[18]

D0:C00 ... D0:FFF

bit[17]

D1:800 ... D1:BFF

bit[16]

D1:C00 ... D1:FFF

For details of program code download please refer to

Section 3.3.2.10. on page 30.

0000

PSelect_Shadow

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