ADSP-SC583 datasheet(96/173 Pages) AD

96 / 173 page

Rev. B

Page 96 of 173

December 2018

ADSP-SC582/SC583/SC584/SC587/SC589/ADSP-21583/21584/21587

SMC Write Cycle Timing With Reference to SYS_CLKOUT

The following SMC specifications (Table 50 and Figure 16) with respect to SYS_CLKOUT are given to accommodate the connection of

the SMC to programmable logic devices. These specifications assume that SYS_CLKOUT is outputting a buffered version of SCLK0 by

setting CGU_CLKOUTSEL.CLKOUTSEL = 0x3.

Table 50. SMC Write Cycle Timing With Reference to SYS_CLKOUT (BxMODE = b#00)

Parameter

Min

Max

Unit

Timing Requirements

tSARDY

SMC0_ARDY Setup Before SYS_CLKOUT

14.4

tHARDY

SMC0_ARDY Hold After SYS_CLKOUT

0.7

Switching Characteristics

tDDAT

SMC0_Dx Disable After SYS_CLKOUT

tENDAT

SMC0_Dx Enable After SYS_CLKOUT

–2.5

tDO

Output Delay After SYS_CLKOUT1

1 Output pins/balls include SMC0_AMSx, SMC0_ABEx, SMC0_Ax, SMC0_Dx, SMC0_AOE, and SMC0_AWE.

7ns

tHO

Output Hold After SYS_CLKOUT 1

–2.5

Figure 16. SMC Write Cycle Timing With Reference to SYS_CLKOUT Timing

SETUP

CYCLES

PROGRAMMED

WRITE

ACCESS

CYCLES

ACCESS

EXTEND

CYCLE

HOLD

CYCLE

tDO

tHO

SYS_CLKOUT

SMC0_ABEx

SMC0_AWE

SMC0_ARDY

SMC0_Dx

tSARDY

tDDAT

tENDAT

tHARDY

tHO

tDO

tHARDY

SMC0_Ax

SMC0_AMSx

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