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Rev. 5.00, 09/03, page 644 of 760
Table 22.2 UDI Commands
Bit 15 to 12
TI3 TI2 TI1 TI0 Description
0000EXTEST
0100SAMPLE/PRELOAD
0101Reserved
0110UDI reset negate
0111UDI reset assert
100—Reserved
101—UDI interrupt
110—Reserved
1110Reserved
1111Bypass mode(Initial value)
0001Recovery from sleep
Bits 11 to 0—Reserved: These bits are always read as 1.
22.3.3 Boundary Scan Register (SDBSR)
The boundary scan register (SDBSR) is a shift register, located on the PAD, for controlling the
input/output pins of the SH7709S.
Using the EXTEST and SAMPLE/PRELOAD commands, a boundary scan test conforming to the
JTAG standard can be carried out. Table 22.3 shows the correspondence between the pins of this
LSI and boundary scan register bits.