Texas Instruments SimpleLink CC3220MOD Series Manual page 41

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Table 8-7 lists the timing parameters for the I2S receive mode.
ITEM NAME
(1)
T1 f
clk
LP (1)
T2 t
(1)
T3 t
HT
(1)
T4 t
OH
(1)
T5 t
OS
(1) Timing parameter assumes a maximum load of 20 pF.
8.14.5.3 GPIOs
All digital pins of the module can be used as general-purpose input/output (GPIO) pins. The GPIO
module consists of four GPIO blocks, each of which provides eight GPIOs. The GPIO module supports 24
programmable GPIO pins, depending on the peripheral used. Each GPIO has configurable pullup and pulldown
strength (weak 10 µA), configurable drive strength (2, 4, and 6 mA), and open-drain enable.
Figure 8-12 shows the GPIO timing diagram.
V
80%
20%
Table 8-8 lists the GPIO output transition times for V
DRIVE DRIVE STRENGTH
STRENGTH (mA) CONTROL BITS
2MA_EN=1
2
4MA_EN=0
2MA_EN=0
4
4MA_EN=1
2MA_EN=1
6
4MA_EN=1
(1) V = 2.3 V, T = 25°C, total pin load = 30 pF
BAT
(2) The transition data applies to the pins other than the multiplexed analog-digital pins 25, 26, 42, and 44.
Copyright © 2021 Texas Instruments Incorporated
Table 8-7. I2S Receive Mode Timing Parameters
DESCRIPTION
Clock frequency
Clock low period
Clock high period
RX data hold time
RX data setup time
DD
t
GPIOR
Figure 8-12. GPIO Timing Diagram
Table 8-8. GPIO Output Transition Times (V
MIN
11.7
13.7
5.5
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t
= 2.3 V.
BAT
= 2.3 V)
BAT
T
r
NOM MAX
13.9 16.3
15.6 18.0
6.4 7.4
CC3220MOD CC3220MODA
CC3220MOD, CC3220MODA
SWRS206E – MARCH 2017 – REVISED MAY 2021
MIN MAX
9.216
1/2 f
clk
1/2 f
clk
0
15
GPIOF
SWAS031-067
(1) (2)
T
f
MIN NOM MAX
11.5 13.9 16.7
9.9 11.6 13.6
3.8 4.7 5.8
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UNIT
MHz
ns
ns
ns
ns
UNIT
ns
ns
ns
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