CC2540T Datasheet, PDF (16/37 Pages) Texas Instruments – Extended Industrial Temperature Bluetooth Smart Wireless MCU

CC2540T
SWRS172A – JULY 2014 – REVISED NOVEMBER 2015
4.21 Debug Interface AC Characteristics
T_A = –40°C to 125°C, V_DD = 2 V to 3.6 V
PARAMETER
f_{clk_dbg}
t₁
t₂
t₃
Debug clock frequency (see Figure 4-4)
Allowed high pulse on clock (see Figure 4-4)
Allowed low pulse on clock (see Figure 4-4)
EXT_RESET_N low to first falling edge on debug
clock (see Figure 4-6)
t₄
Falling edge on clock to EXT_RESET_N high
(see Figure 4-6)
t₅
EXT_RESET_N high to first debug command
(see Figure 4-6)
t₆
Debug data setup (see Figure 4-5)
t₇
Debug data hold (see Figure 4-5)
t₈
Clock-to-data delay (see Figure 4-5)
TEST CONDITIONS
Load = 10 pF
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MIN TYP MAX UNIT
12 MHz
35
ns
35
ns
167
ns
83
ns
83
ns
2
ns
4
ns
30 ns
Time
DEBUG_ CLK
P2_2
t₁
t₂
1/f_{clk_dbg}
Figure 4-4. Debug Clock–Basic Timing
T0436-01
Time
DEBUG_ CLK
P2_2
RESET_N
t₃
t₄
t₅
Figure 4-5. Debug Enable Timing
T0437-01
16
Specifications
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