Clock Control - Fujitsu MB91460 Getting Started

5.1.4 Clock Control

The source of the main and the sub clock is selectable between the adapter board and the
evaluation board. MCLKI and MCLKO of the external bus interface can be connected to the
evaluation board or can be shorten on the adapter board.
Jumper
S22
X0 - USER
S23
X1 - USER
EML – X0A
S24
X0A - USER
EML – X1A
S25
X1A - USER
EVA – MCLKI
EVA – MCLKO
S30 / S31
MCLKI / MCLKO
MCLKI – USER
MCLKO – USER
Default: S22 = EML-X0
S25 = EML-X1A
S30 = MCLKI-USER S31 = MCLKO-USER
By default the clocks are provided from the adapter board.
By default MCLKI and MCLKO are connected to the evaluation board.
MCU-AN-391005-E-V17
Getting Started
Chapter 5 Jumpers and Switches
Setting Description
EML – X0 Main clock provided from adapter board
Main clock provided from evaluation board
EML – X1 Main clock provided from adapter board
Main clock provided from evaluation board
Sub clock provided from adapter board
Sub clock provided from evaluation board
Sub clock provided from adapter board
Sub clock provided from evaluation board
MCLKI
evaluation board. MCLKI and MCLKO are shorten
MCLKI and MCLKO are connected to evaluation
board. MCLKI and MCLKO are not shorten
S23 = EML-X1
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and MCLKO are not
S24 = EML-X0A
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