Device Id Register - Toshiba TMPR4925 Manual

21.2.4

Device ID Register

The Device ID Register is a 32-bit shift register. This register is used for reading the ID code that
expresses the IC manufacturer, part number, and version from the IC and sending it to a serial device.
The following figure shows the configuration of the Device ID Register.
31 28 27
Version
0 0 1 0 0 0 0 0
4 bits
The device ID code for the TX4925 is 0x0001_E031. However, the four top bits of the Version field
may be changed. The device ID code is shifted out from the Least Significant Bit.
MSB
Figure 21.2.5 Shift Direction of the Device ID Register
Chapter 21 Extended EJTAG Interface
Product Number
0 0 0 0 0 0 0 1
16 bits
Figure 21.2.4 Device ID Register
......
21-6
12 11
Manufacturer ID Code
1 1 1 0 0 0 0 0
LSB
TDO
1 0
1
0 0 1 1 0 0 0 1
11 bits