TMS320VC5470ZHKA Datasheet, PDF (73/94 Pages) Texas Instruments – TMS320VC5470 Fixed-Point Digital Signal Processor

Electrical Specifications
6.11.2 McBSP General-Purpose Timings
Table 6−18 and Table 6−19 assume testing over recommended operating conditions (see Figure 6−18).
Table 6−18. McBSP General-Purpose Timing Requirements
tsu(BGPIO-COH) Setup time, BGPIOx input mode before DSP_CLKOUT high†
th(COH-BGPIO) Hold time, BGPIOx input mode after DSP_CLKOUT high†
† _{BGPIOx refers to BCLKRx, BFSRx, BDRx, BCLKXx, or BFSXx when configured as a general-purpose input.}
MIN MAX UNIT
9
ns
0
ns
Table 6−19. McBSP General-Purpose Switching Characteristics
PARAMETER
td(COH-BGPIO)
Delay time, DSP_CLKOUT high to BGPIOx output mode‡
‡ _{BGPIOx refers to BCLKRx, BFSRx, BCLKXx, BFSXx, or BDXx when configured as a general-purpose output.}
NOTE: Only the DSP subsystem can access the McBSPs as GPIOs; they are not available to the ARM subsystem.
MIN MAX
−10
10
UNIT
ns
tsu(BGPIO-COH)
DSP_CLKOUT
BGPIOx Input
Mode†
td(COH-BGPIO)
th(COH-BGPIO)
BGPIOx Output
Mode‡
† _{BGPIOx refers to BCLKRx, BFSRx, BDRx, BCLKXx, or BFSXx when configured as a general-purpose input.}
‡ _{BGPIOx refers to BCLKRx, BFSRx, BCLKXx, BFSXx, or BDXx when configured as a general-purpose output.}
Figure 6−18. McBSP General-Purpose I/O Timings
64 SPRS017B
December 2001 − Revised December 2002