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XA-G30 Datasheet, PDF (27/36 Pages) NXP Semiconductors – XA 16-bit microcontroller family 512 B RAM, watchdog, 2 UARTs | |||
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Philips Semiconductors
XA 16-bit microcontroller family
512 B RAM, watchdog, 2 UARTs
Product data
XA-G30
ALE
PSEN
MULTIPLEXED
ADDRESS AND DATA
UNMULTIPLEXED
ADDRESS
* D0âD15
ALE
tLHLL
tAVLL tLLPL
tPLPH
tLLAX
tPLIV
tPLAZ
tPXIX
tPXIZ
A4âA19
INSTR IN *
tAVIVA
tIXUA
A1âA3
Figure 16. External Program Memory Read Cycle (ALE Cycle)
SU00946
PSEN
MULTIPLEXED
ADDRESS AND DATA
UNMULTIPLEXED
ADDRESS
A4âA11 or A4âA19
INSTR IN *
A0 or A1âA3, A12â19
tAVIVB
A0 or A1âA3, A12â19
* INSTR IN is either D0âD7 or D0âD15, depending on the bus width (8 or 16 bits).
Figure 17. External Program Memory Read Cycle (Non-ALE Cycle)
SU00707
2002 Mar 25
25
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