K20P120M100SF2 Datasheet, PDF (58/66 Pages) Freescale Semiconductor, Inc – K20 Data Sheet

Peripheral operating requirements and behaviors
Table 46. I²S slave mode timing
Num
S11
S12
S13
S14
S15
S16
S17
S18
Description
Operating voltage
I2S_BCLK cycle time (input)
I2S_BCLK pulse width high/low (input)
I2S_FS input setup before I2S_BCLK
I2S_FS input hold after I2S_BCLK
I2S_BCLK to I2S_TXD/I2S_FS output valid
I2S_BCLK to I2S_TXD/I2S_FS output invalid
I2S_RXD setup before I2S_BCLK
I2S_RXD hold after I2S_BCLK
Min.
2.7
8 x t_SYS
45%
10
3
—
0
10
2
Max.
3.6
—
55%
—
—
20
—
—
—
Unit
V
ns
MCLK period
ns
ns
ns
ns
ns
ns
I2S_BCLK (input)
I2S_FS (output)
I2S_FS (input)
I2S_TXD
I2S_RXD
S11
S12
S15
S13
S15
S12
S15
S16
S17
S18
Figure 25. I²S timing — slave modes
S16
S14
S16
6.9 Human-machine interfaces (HMI)
6.9.1 TSI electrical specifications
Table 47. TSI electrical specifications
Symbol
V_DDTSI
C_ELE
f_REFmax
f_ELEmax
C_REF
Description
Operating voltage
Target electrode capacitance range
Reference oscillator frequency
Electrode oscillator frequency
Internal reference capacitor
Min.
1.71
1
—
—
0.5
Typ.
—
20
5.5
0.5
1
Table continues on the next page...
Max.
3.6
500
12.7
4.0
1.2
Unit
V
pF
MHz
MHz
pF
Notes
1
2
3
K20 Data Sheet Data Sheet, Rev. 6.1, 08/2012.
58
Freescale Semiconductor, Inc.