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4-42 Copyright © 2003-2007 ARM Limited. All rights reserved. ARM DUI 0224F
4.5 Advanced Audio CODEC Interface, AACI
The PrimeCell Advanced Audio CODEC Interface (AACI) is an AMBA compliant SoC
peripheral that is developed, tested, and licensed by ARM Limited.
4.5.1 PrimeCell Modifications
The AACI PrimeCell in the PB926EJ-S has a different FIFO depth than the standard
PL041. Therefore, the AACIPeriphID3 register contains the values listed in Table 4-23
on page 4-43.
Figure 4-21 AACI ID register
Table 4-22 AACI implementation
Property Value
Location FPGA (the CODEC is an external LM4549).
Memory base address
0x10004000
Interrupt 24 on secondary controller.
DMA Selectable as channel 0,1, or 2. See DMA peripheral map
registers, SYS_DMAPSRx on page 4-37.
Release version ARM AACI PL041 r1p0 (256 FIFO depth in compact mode).
Reference documentation ARM PrimeCell Advanced Audio CODEC Interface (PL041)
Technical Reference Manual and National Semiconductor
LM4549 Data Sheet. See also changed PrimeCell ID listed in
Table 4-23 on page 4-43 and Advanced Audio Codec Interface,
AACI on page 3-56.