Nokia Mobile Phones NSE-5 Series, Service Manual, Page: 64 / 327

PAMS
Technical Documentation
NSE–5
System Module
Page 2 – 50
Issue 1 07/99
MCU Memory Map
MAD2PR1 supports maximum of 4GB internal and 4MB external address
space. External memories use address lines MCUAd0 to MCUAd21 and
8–bit/16–bit databus. The BUSC bus controller supports 8– and 16–bit
access for byte, double byte, word and double word data. Access wait
states (0, 1 or 2) and used databus width can be selected separately for
each memory block.
Table 15. MCU Memory map
Memory block Chip select Start address Stop address Size Size
boot ROM (*) internal 0000 0000 0000 FFFF 64k 64k
API RAM internal 0001 0000 0001 FFFF 64k 64k
System logic internal 0002 0000 0002 FFFF 64k 64k
API ctl reg. internal 0003 0000 0003 FFFF 64k 64k
Bus Controller Internal 0004 0000 0007 FFFF 256k 256k
The same as
0–7FFFF 0008 0000 000F FFFF 512 k 512 k
ext. RAM (*) RAMSelX 0010 0000 001F FFFF 1M 1M
ext. ROM1 ROM1SelX 0020 0000 005F FFFF 4M 4M
(ext.
ROM2sel is in
flexpool in
MAD2PR1)
144pin (*) (ROM2SelX) (0060 0000) (009F FFFF) (4M) (4M)
(ext. EE-
PROM is in
flex pool in
MAD2PR1) (EEPROMSelX) (00A0 0000) (00DF FFFF) (4M) (4M)
reserved 00E0 0000 00FF FFFF 4M 4M
The same as
0–FF FFFF 0100 0000 FFFF FFFF 4G –
16 M 4G –
16 M
(*) After reset and when BootROMDis and ROM2Boot are low.
MCU can boot from different memory locations, depending on hardware
(GenSDIO0) and software settings.
Table 16. MCU boot memory selection
Start
address
Stop
address
BootROMDis=0
ROM2Boot=0
BootROMDis=1
ROM2Boot=0
BootROMDis=0
ROM2Boot=1
BootROMDis=1
ROM2Boot=1
0000
0000 0000
FFFF boot ROM External RAM ext. ROM2 External RAM