Toshiba TLCS-90 Series Data Book page 59

TOSHIBA
TIMING WAVEFORM
TMP 80 C48AP / -6, TMP80 C35AP / -6, TMP80 C48AF / -6,
TMP80C48AT, TMP80C35AT
A. Instruction Fetch from External Program Memory
ALE
. PSEN
DBO-7 INSTRUCTION
B. Read from External Data Memory
ALE
I ...
----tccl
--------------------------~I
DBO-7
INPUT DATA
...-_ _ _ _ _ tADI
MCU48-49