TMS320DM6431 datasheet(192/227 Pages) TI1

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6.14.1.3

McASP0 Electrical Data/Timing

TMS320DM6431

Digital Media Processor

SPRS342C – NOVEMBER 2006 – REVISED JUNE 2008

www.ti.com

6.14.1.3.1

Multichannel Audio Serial Port (McASP) Timing

Table 6-55. Timing Requirements for McASP (see Figure 6-34 and Figure 6-35)(1)

-3/-3Q/-3S

NO.

UNIT

MIN

MAX

tc(AHCKRX)

Cycle time, AHCLKR/X

tw(AHCKRX)

Pulse duration, AHCLKR/X high or low

tc(CKRX)

Cycle time, ACLKR/X

ACLKR/X ext

tw(CKRX)

Pulse duration, ACLKR/X high or low

ACLKR/X ext

ACLKR/X int

tsu(FRX-CKRX)

Setup time, AFSR/X input valid before ACLKR/X latches data

ACLKR/X ext

ACLKR/X int

th(CKRX-FRX)

Hold time, AFSR/X input valid after ACLKR/X latches data

ACLKR/X ext input

ACLKR/X ext output

ACLKR/X int

tsu(AXR-CKRX)

Setup time, AXR input valid before ACLKR/X latches data

ACLKR/X ext

ACLKR/X int

th(CKRX-AXR)

Hold time, AXR input valid after ACLKR/X latches data

ACLKR/X ext input

ACLKR/X ext output

(1)

ACLKX internal: ACLKXCTL.CLKXM=1, PDIR.ACLKX = 1

ACLKX external input: ACLKXCTL.CLKXM=0, PDIR.ACLKX=0

ACLKX external output: ACLKXCTL.CLKXM=0, PDIR.ACLKX=1

ACLKR internal: ACLKRCTL.CLKRM=1, PDIR.ACLKR = 1

ACLKR external input: ACLKRCTL.CLKRM=0, PDIR.ACLKR=0

ACLKR external output: ACLKRCTL.CLKRM=0, PDIR.ACLKR=1

Peripheral Information and Electrical Specifications

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