Motorola MVME5100 用户手册
PCI Local Bus
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Hawk External Register Bus Address Assignments
This section will describe in detail the Hawk External Register Bus
Address Assignments on MVME5100. The address range for the External
Register Set on MVME5100 is fixed at $FEF88000-$FEF8FFFF.
Address Assignments on MVME5100. The address range for the External
Register Set on MVME5100 is fixed at $FEF88000-$FEF8FFFF.
MVME5100 Hawk External Register Bus Summary
The Hawk External Register Summary of the MVME5100 is shown in the
table below:
table below:
Table 1-9. Hawk External Register Bus Summary
Address
Bits:
REQUIRED (r)
OPTIONAL (o)
OPTIONAL (o)
by PowerPlus II
Register Name
0
1
2
3
4
5
6
7
$FEF88000
THIS GROUP
REQUIRED
UART - 1 -RBR/THR
$FEF88010
UART - 1 -IER
$FEF88020
UART - 1 -IIR/FCR
$FEF88030
UART - 1 -LCR
$FEF88040
UART - 1 -MCR
$FEF88050
UART - 1 -LSR
$FEF88060
UART - 1 -MSR
$FEF88070
UART - 1 -SCR
$FEF88080
o
r
r
STATUS REGISTER
$FEF88090
o
r
r
MODFAIL REGISTER
$FEF880A0
o
r
MODRST REGISTER
$FEF880C0
o
r
TBEN REGISTER