C8051F50x-F51x
18.6.2. Multiplexed Mode
18.6.2.1. 16-bit MOVX: EMI0CF[4:2] = 001, 010, or 011
Muxed 16-bit WRITE
ADDR[15:8]
AD[7:0]
EMIF ADDRESS (8 MSBs) from DPH
EMIF ADDRESS (8 LSBs) from
DPL
EMIF WRITE DATA
T
T
ALEL
ALEH
ALE
T
T
WDH
WDS
T
T
T
ACH
ACS
ACW
/WR
/RD
Muxed 16-bit READ
ADDR[15:8]
AD[7:0]
EMIF ADDRESS (8 MSBs) from DPH
EMIF ADDRESS (8 LSBs) from
DPL
EMIF READ DATA
T
T
ALEL
ALEH
T
T
RDH
RDS
ALE
T
T
T
ACH
ACS
ACW
/RD
/WR
Figure 18.7. Multiplexed 16-bit MOVX Timing
Rev. 1.1
161