COM20020I_06 Datasheet, PDF (4/65 Pages) SMSC Corporation – 5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM

5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
Figure 14 - MULTIPLEXED BUS, 80XX-LIKE CONTROL SIGNALS; WRITE CYCLE.................................................51
Figure 15 - NON-MULTIPLEXED BUS, 80XX-LIKE CONTROL SIGNALS; READ CYCLE .........................................52
Figure 16 - NON-MULTIPLEXED BUS, 80XX-LIKE CONTROL SIGNALS; READ CYCLE .........................................53
Figure 17 - NON-MULTIPLEXED BUS, 68XX-LIKE CONTROL SIGNALS; READ CYCLE .........................................54
Figure 18 - NON-MULTIPLEXED BUS, 68XX-LIKE CONTROL SIGNALS; READ CYCLE .........................................55
Figure 19 - NON-MULTIPLEXED BUS, 80XX-LIKE CONTROL SIGNALS; WRITE CYCLE .......................................56
Figure 20 - NON-MULTIPLEXED BUS, 68XX-LIKE CONTROL SIGNALS; WRITE CYCLE .......................................57
Figure 21 – NORMAL MODE TRANSMIT OR RECEIVE TIMING ...............................................................................58
Figure 22 – BACKPLANE MODE TRANSMIT OR RECEIVE TIMING .........................................................................58
Figure 23 – TTL INPUT TIMING ON XTAL1 PIN .........................................................................................................59
Figure 24 – RESET AND INTERRUPT TIMING...........................................................................................................59
Figure 25 - 28 PIN PLCC PACKAGE DIMENSIONS ...................................................................................................60
Figure 26 - 48 PIN TQFP PACKAGE OUTLINE...........................................................................................................61
Figure 27 - EFFECT OF THE EF BIT ON THE TA/RI BIT ...........................................................................................63
LIST OF TABLES
Table 1 - Typical Media ................................................................................................................................................23
Table 2 - Read Register Summary...............................................................................................................................24
Table 3 - Write Register Summary ...............................................................................................................................25
Table 4 - Status Register ..............................................................................................................................................28
Table 5 - Diagnostic Status Register.............................................................................................................................29
Table 6 - Command Register........................................................................................................................................30
Table 7 - Address Pointer High Register .......................................................................................................................31
Table 8 - Address Pointer Low Register........................................................................................................................31
Table 9 - Sub Address Register ...................................................................................................................................31
Table 10 - Configuration Register ................................................................................................................................31
Table 11 - Setup 1 Register ..........................................................................................................................................33
Table 12 - Setup 2 Register ..........................................................................................................................................34
Revision 12-06-06
4
DATASHEET
SMSC COM20020I 3.3V