OMAP3530ECBC datasheet(209/264 Pages) TI1

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mcbspx_clkx

mcbspx_fsx

mcbspx_dx

030-075

6.6.1.2 McBSP in TDM—Multipoint Mode (McBSP3)

OMAP3530/25 Applications Processor

www.ti.com

SPRS507F – FEBRUARY 2008 – REVISED OCTOBER 2009

Figure 6-40. McBSP Falling Edge Transmit Timing in Slave Mode

For TDM application in multipoint mode, OMAP3530/25 is considered as a slave. Table 6-69 and

Table 6-70 assume testing over the operating conditions and electrical characteristic conditions described

below.

Table 6-68. McBSP3 Timing Conditions—TDM in Multipoint Mode

TIMING CONDITION PARAMETER

VALUE

UNIT

MIN

MAX

Input Conditions

Input signal rising time

1.0

8.5

Input signal falling time

1.0

8.5

Output Conditions

CLOAD

Output Load Capacitance

Table 6-69. McBSP3 Timing Requirements—TDM in Multipoint Mode(1)

NO.

PARAMETER

1.15 V

1.0 V

UNIT

MIN

MAX

MIN

MAX

tW(CLKH)

Cycle Time, mcbsp3_clkx

162.8

tW(CLKH)

Typical Pulse duration, mcbsp3_clkx high

0.5*P(2)

tW(CLKL)

Typical Pulse duration, mcbsp3_clkx low

0.5*P(2)

tdc(CLK)

Duty cycle error, mcbsp3_clkx

–8.14

8.14

–8.14

8.14

B3(3)

tsu(DRV-CLKAE)

Setup time, mcbsp3_dr valid before

mcbsp3_clkx active edge

B4(3)

th(CLKAE-DRV)

Hold time, mcbsp3_dr valid after mcbsp3_clkx

2.4

active edge

B5(3)

tsu(FSV-CLKAE)

Setup time, mcbsp3_fsx valid before

mcbsp3_clkx active edge

B6(3)

th(CLKAE-FSV)

Hold time, mcbsp3_fsx valid after

2.4

mcbsp3_clkx active edge

(1)

For McBSP3, these timings concern only Set #3 (multiplexing mode in McBSP1 pins).

(2)

P = mcbsp3_clkx period in ns

(3)

See Section 6.6.1.1, McBSP in Normal Mode for corresponding figures.

Table 6-70. McBSP3 Switching Characteristics—TDM in Multipoint Mode(1)

NO.

PARAMETER

1.15 V

1.0 V

UNIT

MIN

MAX

MIN

MAX

B8(2)

td(CLKXAE-DXV)

Delay time, mcbsp3_clkx active edge to

0.6

16.8

0.6

29.6

mcbsp3_dx valid

(1)

For McBSP3, these timings concern only Set #3 (multiplexing mode in McBSP1 pins).

(2)

See Section 6.6.1.1, McBSP in Normal Mode for corresponding figures.

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TIMING REQUIREMENTS AND SWITCHING CHARACTERISTICS

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