Texas Instruments TMS320VC5402 - Manual (Page 56)

TMS320VC5402
FIXEDĆPOINT DIGITAL SIGNAL PROCESSOR
SPRS079E – OCTOBER 1998 – REVISED AUGUST 2000
56 POST OFFICE BOX 1443
•
HOUSTON, TEXAS 77251–1443
multichannel buffered serial port timing (continued)
timing requirements for McBSP general-purpose I/O (see Figure 30)
MIN MAX UNIT
tsu(BGPIO-COH) Setup time, BGPIOx input mode before CLKOUT high† 9 ns
th(COH-BGPIO) Hold time, BGPIOx input mode after CLKOUT high† 0 ns
† BGPIOx refers to BCLKRx, BFSRx, BDRx, BCLKXx, or BFSXx when configured as a general-purpose input.
switching characteristics for McBSP general-purpose I/O (see Figure 30)
PARAMETER MIN MAX UNIT
td(COH-BGPIO) Delay time, CLKOUT high to BGPIOx output mode‡ 0 5 ns
‡ BGPIOx refers to BCLKRx, BFSRx, BCLKXx, BFSXx, or BDXx when configured as a general-purpose output.
tsu(BGPIO-COH)
th(COH-BGPIO)
td(COH-BGPIO)
CLKOUT
BGPIOx Input
Mode†
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 30. McBSP General-Purpose I/O Timings