English
Language : 

SDA6000 Datasheet, PDF (50/380 Pages) Infineon Technologies AG – Teletext Decoder with Embedded 16-bit Controller
◁
SDA 6000
C16X Microcontroller
EBI
Address-Space
FF’FFFF H
C16X
Address-Space
D
80’0000 H
S2
60’0000 H
S1
40’0000 H
A
XBUS
41’0000 H
41’0000 H
PMBUS
00’0000 H
B
01’8000 H
00’8000 H
EBI
Address-Space
FF’FFFF H
D
80’0000 H
S2
41’0000 H
40’0000 H
C
S1
00’0000 H
UED11212
Figure 4-8
Memory Mapping
from C16x address-space to EBI address-space for 1 64MBit SDRAM (D)
and 2 16MBit static memory devices (S1, S2) is shown on the left (XBUS/
PMBUS overlap). The right part shows the mapping for 1 64MBit SDRAM
(D) and 2 32MBit static memory devices (S1, S2) (no XBUS/PMBUS
overlap). Redirection via REDIR/REDIR1 is not shown. The exclusion of
the address space for internal memories B leads to 1 segment in physical
memory that is either addressable only via PMBUS A or not addressable
at all C. To get access to these segments use REDIR1.
a) Internal mapping of the C16x:
Access to segments 0 to 64 selects the PMBUS. The address range (00’0000H ...
40’FFFFH) is mapped to the range 00’0000H ... 3F’FFFFH shown to the ICACHE,
thus omitting the internal memories, the special function register areas and the
XBUS peripheral address space contained the range 00’8000H ... 01’7FFFH:
• C16x addresses 00’0000H ... 00’7FFFH are mapped to 00’0000H ... 00’7FFFH
• C16x addresses 01’8000H ... 40’FFFFH are mapped to 00’8000H ... 3F’FFFFH
Users Manual
4 - 17
2000-06-15
 ▷