CC3220 Datasheet, PDF (36/84 Pages) Texas Instruments – SimpleLink Wi-Fi Wireless and Internet-of-Things Solution, a Single-Chip Wireless MCU

CC3220
SWAS035A – SEPTEMBER 2016 – REVISED FEBRUARY 2017
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4.14.3.2 nRESET (External 32K)
Figure 4-7 shows the reset timing diagram for the external 32K first-time power-up and reset removal.
T1
T2
T3
T4
VBAT
VIO
nRESET
STATE
POWER
OFF
RESET
HW INIT
FW INIT
APP CODE
LOAD
APP CODE
EXECUTION
32-kHz
RTC CLK
Figure 4-7. First-Time Power-Up and Reset Removal Timing Diagram (External 32K)
Table 4-4 describes the timing requirements for the external 32-kHz clock first-time power-up and reset
removal.
Table 4-4. First-Time Power-Up and Reset Removal Timing Requirements (External 32K)
ITEM
T1
T2
T3
T4
NAME
Supply settling time
Hardware wake-up time
Time taken by ROM
firmware to initialize
hardware
App code load time for
CC3220R and CC3220S
App code integrity check
time for CC3220SF
DESCRIPTION
Depends on application board power
supply, decoupling capacitor, and so
on
CC3220R
CC3220S
CC3220SF
CC3220R
CC3220S
CC3220SF
MIN
TYP
MAX
3
25
5
10.3
17.3
Image size (KB) × 0.75 ms
Image size (KB) × 1.7 ms
Image size (KB) × 0.06 ms
UNIT
ms
ms
ms
36
Specifications
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