Intel E3815 FH8065301567411 Data Sheet
Product codes
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
Datasheet
345
13.5
Transaction Router C-Unit Message Registers
13.5.1
CUNIT_REG_DEVICEID—Offset 0h
CUnit Configuration Register Device ID/Vendor ID. Device ID and Vendor ID Strapped
in from top level. Reset value to strapDID[15:3],fuse[2:0], 16'h8086 these bits can be
re-written from SETIDVALUE message 1st DW data byte 2, byte 3
Access Method
Default: 00008086h
Table 161.
Summary of C-Unit Message Bus Registers—Port 0x08
Offset
Register Name (Register Symbol)
Default
Value
0–0h
00008086h
1–1h
00000007h
2–2h
06000000h
3–3h
00000000h
B–Bh
00000000h
3E–3Eh
00000000h
Type:
Message Bus Register
(Size: 32 bits)
Offset:
Op Codes:
h - Read, h - Write
h - Read, h - Write
31
28
24
20
16
12
8
4
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 1 1 0
DEVIC
E
ID_VEN
DOR_ID
DE
VICEID_BIT
_
22_19
DE
VICEID_BIT
_
18_16
DE
VICEID_BIT_15_0
Bit
Range
Default &
Access
Field Name (ID): Description
31:23
0h
RW
DEVICEID_VENDOR_ID:
Device ID and Vendor ID bit [15:7] are strapped in from top
level. These bits can be re-written from SETIDVALUE message 1st DW data byte 2, byte
3. for VLV/VLV2, final setting of this field is from SETIDVALUE message, while for TNG it
uses the strapped setting. For all SOC's, the RDL defalut is set to the strapped setting in
that SOC. Please refer to the SoC documentation to determine the proper Device ID for
the chip.
22:19
0h
RO
DEVICEID_bit_22_19 (DEVICEID_BIT_22_19):
Device ID [6:3] Hardwired in the
design. SETIDVALUE message will not re-write this field. RDL default is set to the
strapped value
18:16
0h
RO
DEVICEID_bit_18_16 (DEVICEID_BIT_18_16):
Device ID [2:0]. Strapped in from
top level and tied to fuses to determine product SKU. SETIDVALUE message will not re-
write this field.