Electrical Specifications
5.14.2 McBSP General-Purpose I/O Timing
Table 5−23 and Table 5−24 assume testing over recommended operating conditions (see Figure 5−23).
Table 5−23. McBSP General-Purpose I/O Timing Requirements
MIN
7
MAX
UNIT
ns
†
t
t
Setup time, BGPIOx input mode before CLKOUT high
su(BGPIO-COH)
†
Hold time, BGPIOx input mode after CLKOUT high
0
ns
h(COH-BGPIO)
†
BGPIOx refers to BCLKRx, BFSRx, BDRx, BCLKXx, or BFSXx when configured as a general-purpose input.
Table 5−24. McBSP General-Purpose I/O Switching Characteristics
PARAMETER
MIN
MAX
UNIT
‡
t
Delay time, CLKOUT high to BGPIOx output mode
− 2
4
ns
d(COH-BGPIO)
‡
BGPIOx refers to BCLKRx, BFSRx, BCLKXx, BFSXx, or BDXx when configured as a general-purpose output.
t
t
su(BGPIO-COH)
d(COH-BGPIO)
CLKOUT
t
h(COH-BGPIO)
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 5−23. McBSP General-Purpose I/O Timings
95
November 2001 − Revised April 2004
SPRS007D
TI [ TEXAS INSTRUMENTS ]
