CC2531 Datasheet, PDF (12/32 Pages) Texas Instruments – A USB Enabled System-On-Chip Solution for 2.4-GHz IEEE 802.15.4 and ZigBee Applications

CC2531
SWRS086 – SEPTEMBER 2009 ........................................................................................................................................................................................ www.ti.com
DEBUG INTERFACE AC CHARACTERISTICS
T_A = –40°C to 125°C, V_DD = 2 V to 3.6 V, unless otherwise noted.
PARAMETER
TEST CONDITIONS
f_{clk_dbg}
t₁
t₂
t₃
Debug clock frequency (see Figure 3)
Allowed high pulse on clock (see Figure 3)
Allowed low pulse on clock (see Figure 3)
EXT_RESET_N low to first falling edge on
debug clock (see Figure 4)
t₄
Falling edge on clock to EXT_RESET_N high
(see Figure 4)
t₅
EXT_RESET_N high to first debug command
(see Figure 4)
t₆
Debug data setup (see Figure 5)
t₇
Debug data hold (see Figure 5)
t₈
Clock-to-data delay (see Figure 5)
Load = 10 pF
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 3. Debug Clock – Basic Timing
DEBUG_ CLK
P2_2
RESET_N
t₃
t₄
t₅
Figure 4. Data Setup and Hold Timing
T0436-01
Time
T0437-01
12
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