Data Sheet

TI Confidential – NDA Restrictions
ADVANCEINFORMATION
30
CC3135MOD
SWRS225A –FEBRUARY 2019–REVISED AUGUST 2019 www.ti.com
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Specifications Copyright © 2019, Texas Instruments Incorporated
Table 5-10 lists the host SPI timing parameters.
Table 5-10. Host SPI Timing Parameters
PARAMETER
NUMBER
DESCRIPTION MIN MAX UNIT
T1 F
Clock frequency at V
BAT
= 3.3 V 20
MHz
Clock frequency at V
BAT
= 2.3 V 12
T2 t
clk
Clock period 50 ns
T3 t
LP
Clock low period 25 ns
T4 t
HT
Clock high period 25 ns
T5 D Duty cycle 45% 55%
T6 t
IS
RX data setup time 4 ns
T7 t
IH
RX data hold time 4 ns
T8 t
OD
TX data output delay 20 ns
T9 t
OH
TX data hold time 24 ns
(1) The SimpleLink device does not support automatic detection of the host length while using the UART interface.
5.16.2 Host UART Interface
The SimpleLink device requires the UART configuration described in Table 5-11.
Table 5-11. SimpleLink™ UART Configuration
PROPERTY SUPPORTED CC3135 CONFIGURATION
Baud rate 115200 bps, no auto-baud rate detection, can be changed by the host up to 3 Mbps using a special command
Data bits 8 bits
Flow control CTS/RTS
Parity None
Stop bits 1
Bit order Least significant bit (LSB) first
Host interrupt polarity Active high
Host interrupt mode Rising edge or level 1
Endianness Little-endian only
(1)