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device identification code register

TMS470R1B1M

16/32-Bit RISC Flash Microcontroller

SPNS109A – SEPTEMBER 2005 – REVISED AUGUST 2006

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 10 ). The B1M device identification code register

value is 0xnA5F.

Figure 4. TMS470 Device ID Bit Allocation Register [offset = 0xFFFF_FFF0h]

31 16

Reserved

15 12 11 10 9 3 2 1 0

VERSION TF R/F PART NUMBER 1 1 1

R-K R-K R-K R-K R-1 R-1 R-1

LEGEND:

For bits 3-15: R = Read only, -K = Value constant after RESET.

For bits 0-2: R = Read only, -1 = Value after RESET.

Table 10. TMS470 Device ID Bit Allocation Register Field Descriptions

Bit Field Value Description

31-16 Reserved Reads are undefined and writes have no effect.

15-12 VERSION Silicon version (revision) bits

These bits identify the silicon version of the device.

11 TF Technology family bit

This bit distinguishes the technology family core power supply:

0 3.3 V for F10/C10 devices

1 1.8 V for F05/C05 devices

10 R/F ROM/flash bit

This bit distinguishes between ROM and flash devices:

0 Flash device

1 ROM device

9-3 PART NUMBER 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.

2-0 1 Mandatory High

Bits 2, 1, and 0 are tied high by default.

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