Texas-instruments TMS320DM646X DMSOC Uživatelský manuál stáhnout pdf (Strana 51)

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Registers

Table 34. Asynchronous Wait Cycle Configuration Register (AWCCR) Field Descriptions (continued)

Bit Field Value Description

17-16 CS2_WAIT 0-3h EM_WAIT[5:2] pin map for chip select 2. By default, the EM_WAIT[2] pin is used for chip select 2.

0 EM_WAIT[2] pin is used.

1h EM_WAIT[3] pin is used.

2h EM_WAIT[4] pin is used.

3h EM_WAIT[5] pin is used.

15-8 Reserved 0 Reserved

7-0 MEWC 0-FFh Maximum extended wait cycles. The EMIF will wait for a maximum of (MEWC + 1) × 16 clock cycles

before it stops inserting asynchronous wait cycles and proceeds to the hold period of the access.

SPRUEQ7C–February 2010 Asynchronous External Memory Interface (EMIF)

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Texas-instruments TMS320DM646X DMSOC Uživatelský manuál Strana 51