mt90528ag2 Zarlink Semiconductor, mt90528ag2 Datasheet - Page 40

• Manufacturer Part Number: mt90528ag2
• Description: 28-port Primary Rate Circuit Emulation Aal1 Sar
• Manufacturer: Zarlink Semiconductor

memory, the external memory interface module checks the parity bits of the data which is read. If there are parity
errors, they are reported in the Parity Error Status Register at byte address 7004h. A service enable bit may be set
to cause a CPU interrupt to be generated due to the occurrence of a parity error on reads of external memory data.
The external memory interface of the MT90528 supports up to 1 Mword of external memory. The configuration is
programmable via the Memory Arbiter Configuration Register at byte address 7000h, and some of the possible
configurations are listed in Table 10 below:
Number of Memory
Banks
1
2
4
Table 10 - Possible Memory Configurations
Maximum Size of Each
Memory Bank (words)
Zarlink Semiconductor Inc.
MT90528
512 K
256 K
1 M
40
Maximum Total Memory
Size (words)
1 M
1 M
1 M
Data Sheet