AM186 Datasheet, PDF (58/112 Pages) Advanced Micro Devices – High-Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers with RAM

PB=0
PB=1
DR/DT=0 DR/DT=0
PB=0
PB=1
DR/DT=1 DR/DT=0
PB=0
PB=1
DR/DT=1 DR/DT=0
PB=0
PB=0
DR/DT=1 DR/DT=0
SDEN1 or
SDEN0
SCLK
SDATA
Poll SSS for
PB=0
Poll SSS for
PB=0
Poll SSS for
PB=0
Write to SSD
Write to SSD
Write to SSD
Write to SSC,
Write to SSC, bit
bit DE=1
Figure 14. Synchronous Serial Interface Multiple Write
DE=0
T _PB=0
F _DR/DT=0
PB=1
DR/DT=0
PB=0
DR/DT=1
PB=1
DR/DT=0
PB=0
DR/DT=1
PB=1
DR/DT=0
PB=0
PB=0
DR/DT=1 DR/DT=0
SDEN1 or
SDEN0
A _SCLK
R ^SDATA
Poll SSS for
PB=0
Write to SSD
DWrite to SSC,
Poll SSS for
PB=0
Poll SSS for
PB=0
Read from SSR
(dummy)
Read from
SSR
Write to SSC,
bit DE=0
Read from SSR
bit DE=1
Figure 15. Synchronous Serial Interface Multiple Read
58
Am186^TMER and Am188^TMER Microcontrollers Data Sheet