XA-G37 Datasheet, PDF (27/37 Pages) NXP Semiconductors – XA 16-bit microcontroller family 32K OTP, 512 B RAM, watchdog, 2 UARTs

Philips Semiconductors
XA 16-bit microcontroller family
32K OTP, 512 B RAM, watchdog, 2 UARTs
Product data
XA-G37
ALE
PSEN
MULTIPLEXED
ADDRESS AND DATA
UNMULTIPLEXED
ADDRESS
* D0–D15
ALE
t_LHLL
t_AVLL t_LLPL
t_PLPH
t_LLAX
t_PLIV
t_PLAZ
t_PXIX
t_PXIZ
A4–A19
INSTR IN *
t_AVIVA
t_IXUA
A1–A3
Figure 16. External Program Memory Read Cycle (ALE Cycle)
SU00946
PSEN
MULTIPLEXED
ADDRESS AND DATA
UNMULTIPLEXED
ADDRESS
A4–A11 or A4–A19
INSTR IN *
A0 or A1–A3, A12–19
t_AVIVB
A0 or A1–A3, A12–19
* INSTR IN is either D0–D7 or D0–D15, depending on the bus width (8 or 16 bits).
Figure 17. External Program Memory Read Cycle (Non-ALE Cycle)
SU00707
2002 Mar 25
25