SM470R1B1M-HT Datasheet, PDF (34/67 Pages) Texas Instruments – 16/32-BIT RISC FLASH MICROCONTROLLER

SM470R1B1M-HT
SPNS155F – SEPTEMBER 2009 – REVISED AUGUST 2012
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device identification code register
The device identification code register identifies the silicon version, the technology family (TF), a ROM or flash
device, and an assigned device-specific part number (see Table 12). The B1M device identification code register
value is 0xnA5F.
Figure 5. SM470 Device ID Bit Allocation Register [offset = 0xFFFF_FFF0h]
31
16
Reserved
15
12
11
10
9
VERSION
TF R/F
R-K
R-K R-K
LEGEND:
For bits 3-15: R = Read only, -K = Value constant after RESET.
For bits 0-2: R = Read only, -1 = Value after RESET.
PART NUMBER
R-K
3
2
1
0
1
1
1
R-1 R-1 R-1
Table 12. SM470 Device ID Bit Allocation Register Field Descriptions
Bit
31-16
15-12
Field
Reserved
VERSION
11 TF
10 R/F
9-3 PART NUMBER
2-0 1
Value
0
1
0
1
Description
Reads are undefined and writes have no effect.
Silicon version (revision) bits
These bits identify the silicon version of the device.
Technology family bit
This bit distinguishes the technology family core power supply:
3.3 V for F10/C10 devices
1.8 V for F05/C05 devices
ROM/flash bit
This bit distinguishes between ROM and flash devices:
Flash device
ROM device
Device-specific part number bits
These bits identify the assigned device-specific part number. The assigned device-specific part
number for the B1M device is 1001011.
Mandatory High
Bits 2, 1, and 0 are tied high by default.
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