TMS320C6474
SPRS552F – OCTOBER 2008 – REVISED JULY 2010
www.ti.com
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
SRCC27
SRCC26
SRCC25
SRCC24
SRCC23
SRCC22
SRCC21
SRCC20
SRCC19
SRCC18
SRCC17
SRCC16
SRCC15
SRCC14
SRCC13
SRCC12
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
15
14
13
12
11
10
9
8
7
6
5
4
3
0
SRCC11
SRCC10
SRCC9
SRCC8
SRCC7
SRCC6
SRCC5
SRCC4
SRCC3
SRCC2
SRCC1
SRCC0
Reserved
R/W-
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R-0000
0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Figure 3-4. IPC Acknowledgment Registers (IPCAR0-IPCAR2)
Table 3-6. IPC Acknowledgment Registers (IPCAR0-IPCAR2) Field Descriptions
Bit
Field
Value
Description
31:4
SRCC[27:0]
Write:
0
No effect
1
Clear register bit
Read:
Returns current value of internal register bit
3:0
Reserved
Reserved
3.6
JTAG ID (JTAGID) Register Description
The JTAG ID register is a read-only register that identifies to the customer the JTAG/Device ID. For the
C6474 device, the JTAG ID register resides at address location 0x0288 0814. For the actual register bit
names and their associated bit field descriptions, see
Figure 3-5
and
Table 3-7
.
31
28 27
12 11
1
0
VARIANT
PART NUMBER
MANUFACTURER
LSB
(4-bit)
(16-bit)
(11-bit)
R-n
R-0000 0000 1001 0010b
R-000 0001 0111b
R-1
LEGEND: R = Read only; -n = value after reset
Figure 3-5. JTAG ID (JTAGID) Register
Table 3-7. JTAG ID (JTAGID) Register Field Descriptions
Bit
Field
Value
Description
31:28
VARIANT
Variant (4-Bit) value. The value of this field depends on the silicon revision being used.
Note: the VARIANT filed may be invalid if no CLKIN1 signal is applied.
27:12
PART NUMBER
Part Number (16-Bit) value. C6474 value: 0000 0000 1001 0010b.
11:1
MANUFACTURER
Manufacturer (11-Bit) value. C6474 value: 000 0001 0111b.
0
LSB
LSB value. This bit is read as 1 for C6474.
3.7
Debugging Considerations
It is recommended that external connections be provided to device configuration pins. Although internal
pullup/pulldown resistors exist on these pins, providing external connectivity adds convenience to the user
in debugging and flexibility in switching operating modes.
For the internal pullup/pulldown resistors for all device pins, see
Table 2-5
.
50
Device Configuration
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