XA-S3 Datasheet, PDF (43/52 Pages) NXP Semiconductors – XA 16-bit microcontroller 32 K/1 K OTP/ROM/ROMless, 8-channel 8-bit A/D, low voltage 2.7 V.5.5 V, I2C, 2 UARTs, 16 MB address range

Philips Semiconductors
XA 16-bit microcontroller
32 K/1 K OTP/ROM/ROMless, 8-channel 8-bit A/D, low voltage (2.7 V–5.5 V),
I²C, 2 UARTs, 16 MB address range
Preliminary specification
XA-S3
AC WAVEFORMS
CLKOUT
ALE
PSEN
Multiplexed
Address and Data
Unmultiplexed
Address
t_CHLH
t_CLLL
t_LHLL
t_CHPL
t_CHAV
t_CHAX
t_LLPL
t_CHPH
t_PLPH
t_PHIZ
t_CHIZ
t_AVLL
t_LLAX
A4–A11 or A4–A23
t_PLIV
t_IVCH
t_CHIX
t_PHIX
INSTR IN*
t_AVIVA
A0 or A1–A3, A12–A23
t_IXUA
*INSTR IN is either D0–D7 or D0–D15, depending on the bus width (8 or 16 bits).
Figure 26. External Program Memory Read Cycle (ALE Cycle)
PSEN
SU00943A
Multiplexed
Address and Data
Unmultiplexed
Address
t_AVIVB
A0 or A1–A3, A12–A23
INSTR IN*
*INSTR IN is either D0–D7 or D0–D15, depending on the bus width (8 or 16 bits).
Figure 27. External Program Memory Read Cycle (Non-ALE Cycle)
SU00949
2000 Dec 01
43