Renesas Stereo System SH7709S User Manual

Page of 807
Rev. 5.00, 09/03, page 644 of 760
Table 22.2
UDI Commands
Bit 15 to 12
TI3
TI2
TI1
TI0
Description
0
0
0
0
EXTEST
0
1
0
0
SAMPLE/PRELOAD
0
1
0
1
Reserved
0
1
1
0
UDI  reset  negate
0
1
1
1
UDI  reset  assert
1
0
0
Reserved
1
0
1
UDI  interrupt
1
1
0
Reserved
1
1
1
0
Reserved
1
1
1
1
Bypass  mode
(Initial  value)
0
0
0
1
Recovery  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.