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TVME8300 User Manual Issue 1.4
Page 18 of 70
3.3
Address Map – PCI I/O Master View
PCI I/O Address
Start
End
Size
(Byte)
Description
0x0000_0000
0x0000_FFFF
64K
PCI I/O Space
0x0001_0000
0x007F_FFFF
8M – 64K
Reserved
0x0080_0000
0x00BF_FFFF
4M
PCI I/O Space
0x00C0_0000
0xFFFF_FFFF
4G – 12M
Reserved
Figure 3-5 : Address Map – PCI I/O Master View
The MPC8245 does not respond as a target to PCI I/O cycles.
3.4
Address Map – Peripheral Devices Detail
Address
Start
End
Size
(Byte)
Description
0xFFE0_0000
0xFFE0_1FFF
8K
NVRAM / RTC
0xFFE0_2000
0xFFE3_FFFF
256K – 8K
Reserved
0xFFE4_0000 0xFFE4_0003
4
UTILITY
REG
0xFFE4_0004
0xFFE7_FFFF
256K – 4
Reserved
0xFFE8_0000 0xFFE8_0007
8
UART
CH
A
0xFFE8_0008 0xFFE8_000F
8
UART
CH
B
0xFFE8_0010 0xFFEF_FFFF
512K
-16
Reserved
Figure 3-6 : Address Map – Peripheral Devices Detail
For read or write accesses to the Peripheral Devices only 8 bit (byte) transfer sizes are allowed.
For the NVRAM / RTC register map please refer to the M48T59 device documentation.
For the UART register map please refer to the XR16C2550 documentation.