User`s manual

Am186™CC Microcontroller Router Reference Design User’s Manual
2-5
Table 2-4. Configuration Resistor Population
Functionality Populate Do Not
Populate
Schematic
Sheet #
Comments
ISDN S R137,
R139
R_UFS,
R136,
R138
6, 9 Normal operation
ISDN U R_UFS,
R136,
R138
R137,
R139
6, 9 The Am186CC
microcontroller router
reference design is
shipped configured for
the S/T interface. To use
the U interface, make the
resistor changes and do
not access the
Am79C32A chip with
software.
Clock modes R54 R51, R52,
R53
10 Enable clock CPU 2X
PLL, USB 2X PLL. See
Table 2-5 on page 2-11
and Table 2-6 on page 2-
11.
Board ID R93, R95,
R98, R100
R94, R96,
R97, R99
10 See “RESCON
Configuration” on
page 2-30.
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