User manual

Bit 31 24 23 20 19 16 15 4 3 0
TDI
Version Test
TAPs
EMU
TAPs
ICEPick Type Capabilities
TDO
Access R R R R R
Reset 0x41 6 1 0x1CC *
Bit 31 28 27 12 11 1 0
TDI
Version Variant Number Reserved 1
TDO
Access R R R R
Reset VERSION[3:0] VARIANT[15:0] 0 1
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Table 5-8. Device Identification Register Description
Field Width Description
Version 4 Revision of the device
Part Number 16 Part number of the device
Manufacturer 11 TI’s JEDEC bank and company code: 00000010111b
0 1 This bit is always 1
5.3.2.6 User Code Register
The User Code register helps to distinguish between the devices built from the same chip. The User Code
register value is set through eFuse. Each variant is uniquely identified by feature set or pinned out
interface.
The User Code register is a 32-bit register that specifies the version and part number of the component.
The contents of this register is replicated to device configuration area which is memory mapped. Refer to
Figure 5-8 and Table 5-9 for details of this register.
Figure 5-8. User Code Register
Table 5-9. User Code Register Description
Field Width Description
Revision of the device. This field should change each time that the
Version 4
logic or mask set of the device is revised. The initial value is 0.
Variant Number 16 Variant of chip. The decoding of this field is shown in FCFG1:USER_ID
Reserved 11 0
0 1 Bit 0 is always 1
5.3.2.7 ICEPick™ Identification Register
This register indicates the features and version of the ICEPick module (do not confuse the ICEPick IR with
the device IR).
The ID register is a 32-bit register that specifies the version and features of the ICEPick module. See
Table 5-10 for a description of the ICEPick IR.
Figure 5-9. ICEPick Identification Register
Table 5-10. ICEPick Identification Register Description
Field Width Description
Version 8 Revision of ICEPick.
Test TAPs 4 Number of Test TAPs
EMU TAPs 4 Number of EMU TAPs
Icepick Type 12 An identifier of the Icepick Type
This field is set to 0x1CC which corresponds to Type C.
Capabilities 4 Reserved
401
SWCU117A–February 2015–Revised March 2015 JTAG Interface
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