AN2244 Freescale Semiconductor / Motorola, AN2244 Datasheet - Page 16

• Manufacturer Part Number: AN2244
• Description: Interconnecting Two MSC8101ADS Boards Across a 60x-Compatible Bus to the Host Interface
• Manufacturer: Freescale Semiconductor / Motorola

Physical MSC8101ADS Settings
6
16
Physical MSC8101ADS Settings
UPM Offset
Cycle Type
offset + 0
offset + 1
offset + 2
offset + 3
offset + 4
offset + 5
offset + 6
offset + 7
offset + 8
offset + 9
offset + a
offset + b
offset + c
offset + d
offset + e
offset + f
Table 2 defines the hexadecimal values loaded into the UPM RAM Array to obtain these timing signals.
Note:
Table 3 defines the default switch configuration for the HDI16 MSC8101 platform.
SW1 – HOST
SW2 – PPC_CTRL
SW5
SW6
SW9
SW10
SW11 – S/W_OPT
Within the UPM RAM array definition in the upminit.c source file are many #if
0-#else-#endif statements that can be changed to #if 1 to select faster HDI16 transfer
UPM patterns. These faster patterns have been successfully tested.
Switch
Single Read
0xFFFFFC05
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0x0FFFFC00
0x0FFFF000
0x0FFFF000
0x0FFFF000
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Table 3. HDI16 MSC8101ADS Switch Settings
0x0FFFFC8C
Burst Read
0xFFFFFC01
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0x0FFFFC80
0x0FFFF000
0x0FFFF000
0x0FFFF000
On-on-on–on
On-on-on-on-on-on-on-on
32-bit
32-bit
On-on-on-off-on-off-on-on
On-on-on-on
On-on-on-on
Table 2. UPM RAM Array Values
0x8
Settings used
Single Write
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0x0FFF3C00
0x0FFF3C00
0xFFFF3C05
0x0FFF3000
0x0FFF3400
0x18
Mandatory to use the HDI16
Mandatory to use the HDI16
MODCLK #40, HDI16 enabled by SW9/8 being on.
Burst Write
0x0FFF3C8C
0x0FFF3C80
0x0FFF3C00
0xFFFFFC01
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0x0FFF3000
0x0FFF3400
0x20
Comments
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
Refresh
0x30
6
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
0xFFFFFFFF
Exception
0x3c