peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 285
peb20560
Manufacturer Part Number
peb20560
Description
Dsp Oriented Pbx Controller Doc
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEB20560.pdf
(433 pages)
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Semiconductor Group
5.1.1.4.14 Memory Access Address Register (MAAR)
Access: read/write
Reset value: xx
The Memory Access Address Register MAAR specifies the address of the memory
access. This address encodes a CFI time-slot for control memory (CM) and a PCM
time-slot for data memory (DM) accesses. Bit 7 of MAAR (U/D-bit) selects between
upstream and downstream memory blocks. Bits MA6…0 encode the CFI- or PCM-port
and time-slot number as in the following tables:
Table 5-41 Time-Slot Encoding for Data Memory Accesses
PCM-mode 0
PCM-mode 1,3
PCM-mode 2
Table 5-42 Time-Slot Encoding for Control Memory Accesses
CFI-mode 0
CFI-mode 1
CFI-mode 2
CFI-mode 3
bit 7
U/D
MA6
H
MA5
bit U/D
bits MA6…MA3, MA0
bits MA2…MA1
bit U/D
bits MA6…MA3, MA1, MA0
bit MA2
bit U/D
bits MA6…MA0
bit U/D
bits MA6…MA3, MA0
bits MA2…MA1
bit U/D
bits MA6…MA3, MA2, MA0
bit MA1
bit U/D
bits MA6…MA0
bit U/D
bits MA6…MA4, MA0
bits MA3…MA1
Control Memory Address
Data Memory Address
MA4
5-42
MA3
MA2
direction selection
time-slot selection
logical PCM-port number
direction selection
time-slot selection
logical PCM-port number
direction selection
time-slot selection
direction selection
time-slot selection
logical CFI-port number
direction selection
time-slot selection
logical CFI-port number
direction selection
time-slot selection
direction selection
time-slot selection
logical CFI-port number
Description of Registers
MA1
PEB 20560
bit 0
MA0
2003-08
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