TMS320C6424_1 Datasheet, PDF (240/245 Pages) Texas Instruments – Fixed-Point Digital Signal Processor

TMS320C6424
Fixed-Point Digital Signal Processor
SPRS347B – MARCH 2007 – REVISED NOVEMBER 2007
BIT
31:28
27:12
11-1
0
Table 6-92. JTAG ID Register Selection Bit Descriptions
NAME
VARIANT
PART NUMBER
MANUFACTURER
LSB
DESCRIPTION
Variant (4-Bit) value. A read from this field always returns 0b0000.
Part Number (16-Bit) value. C6424 value: 1011 0111 0010 0001.
Manufacturer (11-Bit) value. C6424 value: 0000 0010 111.
LSB. This bit is read as a "1" for C6424.
6.22.2 JTAG Electrical Data/Timing
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Table 6-93. Timing Requirements for JTAG Test Port (see Figure 6-49)
NO.
1
t_c(TCK)
3
t_{su(TDIV-TCKH)}
4
t_h(TCKH-TDIV)
Cycle time, TCK
Setup time, TDI/TMS/TRST valid before TCK high
Hold time, TDI/TMS/TRST valid after TCK high
-4/-4Q/-4S
-5/-5Q/-5S
-6
MIN
MAX
33
2.5
16.5
UNIT
ns
ns
ns
Table 6-94. Switching Characteristics Over Recommended Operating Conditions for JTAG Test Port
(see Figure 6-49)
NO.
2
t_d(TCKL-TDOV)
PARAMETER
Delay time, TCK low to TDO valid
-4/-4Q/-4S
-5/-5Q/-5S
-6
MIN
MAX
0
14
UNIT
ns
TCK
TDO
TDI/TMS/TRST
1
2
2
4
3
Figure 6-49. JTAG Test-Port Timing
240 Peripheral Information and Electrical Specifications
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