Freescale Semiconductor MPC8313E Family Reference Manual page 539

Powerquicc ii pro integrated processor
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signal of the corresponding bank depends on the value of each CSTn bit.
control LCSn signals.
UPMA/B/C
FCM
GPCM
UPMA/B/C
FCM
GPCM
Byte Select Signal Timing (BST n )
10.4.4.4.3
If BRn[MSEL] of the accessed memory bank selects a UPM on the currently requested cycle, the selected
UPM affects the assertion and negation of the appropriate LBS[0:1] signal. The timing of both byte-select
signals is specified in the RAM word. However, LBS[0:1] are also controlled by the port size of the
MPC8313E PowerQUICC II Pro Integrated Processor Family Reference Manual, Rev. 3
Freescale Semiconductor
Bank Selected
BR n [MSEL]
MUX
Bank Selected
BR n [MSEL]
MUX
Figure 10-65. LCS n Signal Selection
Enhanced Local Bus Controller
Figure 10-65
Switch
LCS0
LCS1
Switch
LCS0
LCS1
LCS2
LCS3
shows how UPMs
10-85

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