CS493253-CLZ Cirrus Logic Inc, CS493253-CLZ Datasheet - Page 65

• Manufacturer Part Number: CS493253-CLZ
• Description: Audio DSPs IC Multi-Standard Audio Decoder
• Manufacturer: Cirrus Logic Inc

Specifications of CS493253-CLZ

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 40 is an example of a non-paged memory
image.
Only 15 of the 16 output bits of the address latches
would be connected to address bits A0-A14 of the
external ROM, in order to have access to the single
application code stored in the 32 kilobyte non-
paged memory. The host is completely isolated
DS339F7
CS493254
Dolby Digital with PLII +
Cinema Re-EQ,
HDCD
CS493264
Dolby Digital with C.E.S., MPEG
Multichannel with C.E.S., DTS
with C.E.S., MP3
Dolby Digital with PLII with
C.E.S., MPEG Multichannel with
PLII, DTS-ES, DTS Neo:6
Dolby Digital with PLII with
C.E.S., MPEG Multichannel with
PLII, DTS-ES with PLII, DTS
Neo:6, HDCD, LOGIC7, MP3,
Virtual Dolby Digital with VMAx
VirtualTheater
CS493292
Dolby Digital with PLII with
C.E.S., MPEG Multichannel with
PLII, DTS-ES, DTS Neo:6,
HDCD, SRS Circle Surround II,
C.O.S., MPEG-2: AAC
N/A, All IBA codes are loaded
N/A, All IBA codes are loaded
using Host Boot technique
using Host Boot technique
ROM Content
Figure 40. Non-Paged Memory
0x00000
0x0FFFF
Table 12. Memory Requirements for Example 5.1, 6.1 and 7.1 Channel Systems
another Full Download Code
Pro Logic II Code
Dolby Digital with
or
Host Boot technique
Host Boot technique
32 + 32 = 64 Kbytes
N/A, All IBA codes
N/A, All IBA codes
are loaded using
are loaded using
32 * 4 pages =
32 * 4 pages =
Image Size
128 Kbytes
128 Kbytes
256 Kbytes
256 Kbytes
32 * 8 =
32 * 8 =
Host Boot technique
Host Boot technique
Number of Pages
N/A, All IBA codes
N/A, All IBA codes
are loaded using
are loaded using
from memory accesses in this situation. Once the
hardware has been designed, the DSP itself will be
responsible for all communication with the ROM.
8.7.2. 32 Kilobyte Paged Autoboot
An external memory architecture which is paged
on 32 Kilobyte boundaries offers the higher end
system the ability to store several full download or
IBA application codes in each 32 Kilobyte page.
Figure 41 shows an example of a 32 Kilobyte
paged memory image for a the premium 6.1/7.1
channel system describe in Table 12 above.
Required
2
4
4
8
8
Memory
CS49300 Family DSP
Dolby Digital with
Dolby Digital with
Codes not avail-
Stored in Host
IBA Code(s)
C.O.S., DTS
N/A, No IBA
able for the
CS493292
C.O.S.
C.O.S.
C.O.S.
C.O.S.
C.O.S.
PL II,
PL II,
Dolby Digital with
Dolby Digital with
DTS 5.1 Channel
Channel System
Channel System
Channel System
Channel System
Premium 6.1/7.1
Channel System
Type of Design
6.1/7.1 Channel
Pro Logic II 5.1
Pro Logic II 5.1
Enhanced 6.1
Dolby Digital/
Enhanced
Enhanced
Basic 6.1
with AAC
Premium
Support
System
System
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