Dynamic Engineering PMC-4U-CACI Manuale Utente Scaricare il pdf (Pagina 13)

Hardware and Software Design • Manufacturing Services

P a g e 13

PMC4U_BASE

[0X00] PMC-4U Control Register Port read/write

CONTROL BASE

DATA BIT DESCRIPTION

31-22 spare

21-20 test mode select

19 master interrupt enable

18 force interrupt

17 SCC reset

16 UART reset

15-0 spare

FIGURE 4 PMC-4U BASE CONTROL REGISTER BIT MAP

All bits are active high and are reset on power-up or reset command.

Test mode select is used to enable different drivers and receivers to allow

thorough testing of the IO circuitry. A value of “00” indicates normal

operational mode. In this mode the connections are as follows (see figure

12 for pin-out information):

Signal Function Driver/Receiver

UART Tx A IO_8 (RS422)

OUT_0 (RS423)

UART Rx A IO_0 (RS422)

UART Tx B IO_9 (RS422)

OUT_1 (RS423)

UART Rx B IO_2 (RS422)

UART Tx C IO_10 (RS422)

OUT_2 (RS423)

UART Rx C IO_4 (RS422)

UART Tx D IO_11 (RS422)

OUT_3 (RS423)

UART Rx D IO_6 (RS422)

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 32 33

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Dynamic Engineering PMC-4U-CACI Manuale Utente Pagina 13