H O S T I N T E R F A C E
Data Device Corporation
DS-BU-67301B-G
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Table 8. Synchronous 16-bit Mode Configuration Options
POL_SEL
RD_nWR
FIRST WORD TRANSFER
SECOND WORD
TRANSFER
1
1
MSW_nLSW = 1
CPU
RAM 15:0
MSW_nLSW = 0
CPU
RAM 31:16
1
0
MSW_nLSW = 1
CPU
RAM 15:0
MSW_nLSW = 0
CPU
RAM 31:16
0
1
MSW_nLSW = 0
CPU
RAM 15:0
MSW_nLSW = 1
CPU
RAM 31:16
0
0
MSW_nLSW = 0
CPU
RAM 15:0
MSW_nLSW = 1
CPU
RAM 31:16
6.4.4.1 Synchronous Mode Connection Diagrams
Figure 19 through Figure 22 show the four possible Synchronous mode interface
configurations, including the four combinations of 32-bit, 16-bit, non-multiplexed, and
multiplexed.