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XA-G49 Datasheet, PDF (36/42 Pages) NXP Semiconductors – XA 16-bit microcontroller family 64K FLASH/2K RAM, watchdog, 2 UARTs | |||
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Philips Semiconductors
XA 16-bit microcontroller family
64K Flash/2K RAM, watchdog, 2 UARTs
Preliminary specification
XA-G49
ALE
RD
MULTIPLEXED
ADDRESS
AND DATA
UNMULTIPLEXED
ADDRESS
tLLRL
tRLRH
tAVLL
tLLAX
A4âA11 or A4âA19
tRLDV
tRHDZ
tRHDX
DATA IN *
tAVDVA
A0 or A1âA3, A12âA19
tDXUA
* DATA IN is either D0âD7 or D0âD15, depending on the bus width (8 or 16 bits).
Figure 22. External Data Memory Read Cycle (ALE Cycle)
ALE
RD
SU00947
MULTIPLEXED
ADDRESS
AND DATA
UNMULTIPLEXED
ADDRESS
A4âA11
D0âD7
A0âA3, A12âA19
DATA IN *
tAVDVB
A0âA3, A12âA19
Figure 23. External Data Memory Read Cycle (Non-ALE Cycle)
SU00708A
2000 Apr 03
36
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