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Processor Clock
(CLK2/2)
S
y
s
t
e
m
B
A25:14
u
s
A13:1
Figure 15-1. Refresh Control Unit Connections
Interval Timer Unit
Refresh Clock Interval Register
10-bit Interval Counter
Timeout
Control Unit
Refresh Control Register
Address Generation Unit
Refresh Base Address Register
13-bit Address Counter
Refresh Address Register
REFRESH CONTROL UNIT
REFRESH#
(pin mux)
Refresh
Request
Refresh
Acknowledge
A2341-01
15-3
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