Texas Instruments TMS320VC5402 User Manual
Page 56
TMS320VC5402
FIXEDĆPOINT DIGITAL SIGNAL PROCESSOR
SPRS079E – OCTOBER 1998 – REVISED AUGUST 2000
56
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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