Section 29
User Debugging Interface (H-UDI)
Rev. 0.50 May 18, 2006 Page 1401 of 1588
REJ09B0313-0050
29.3 Register
Descriptions
The H-UDI has the following registers.
Table 29.2 Register Configuration
Register Name
Abbreviation R/W
Initial Value
Address
Access
Size
Bypass register
SDBPR
Instruction register
SDIR
R
H'EFFD
H'FFFE2000
16
29.3.1
Bypass Register (SDBPR)
SDBPR is a 1-bit register that cannot be accessed by the CPU. When SDIR is set to BYPASS
mode, SDBPR is connected between H-UDI pins TDI and TDO. The initial value is undefined.
29.3.2
Instruction Register (SDIR)
SDIR is a 16-bit read-only register. It is initialized by
TRST
assertion or in the TAP test-logic-
reset state, and can be written to by the H-UDI irrespective of the CPU mode. Operation is not
guaranteed if a reserved command is set in this register. The initial value is H'EFFD.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Note:
The initial value of the TI[7:0] bits is a reserved value. When setting a command, the TI[7:0] bits must be set to another value.
*
1
*
1
*
1
*
0
*
1
*
1
*
1
*
1
*
1
1
1
1
1
1
0
1
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Bit:
Initial value:
R/W:
TI[7:0]
-
-
-
-
-
-
-
-
Bit Bit
Name
Initial
Value
R/W Description
15 to 8
TI[7:0]
11101111
*
R Test
Instruction
The H-UDI instruction is transferred to SDIR by a
serial input from TDI.
For commands, see table 29.3.
7 to 2
All
1
R
Reserved
These bits are always read as 1.
Содержание Single-Chip Microcomputer SH7203
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Страница 242: ...Section 8 Cache Rev 0 50 May 18 2006 Page 212 of 1588 REJ09B0313 0050 ...
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Страница 668: ...Section 11 Multi Function Timer Pulse Unit 2 MTU2 Rev 0 50 May 18 2006 Page 638 of 1588 REJ09B0313 0050 ...
Страница 696: ...Section 13 Watchdog Timer WDT Rev 0 50 May 18 2006 Page 666 of 1588 REJ09B0313 0050 ...
Страница 726: ...Section 14 Realtime Clock RTC Rev 0 50 May 18 2006 Page 696 of 1588 REJ09B0313 0050 ...
Страница 796: ...Section 15 Serial Communication Interface with FIFO SCIF Rev 0 50 May 18 2006 Page 766 of 1588 REJ09B0313 0050 ...
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Страница 1226: ...Section 23 USB 2 0 Host Function Module USB Rev 0 50 May 18 2006 Page 1196 of 1588 REJ09B0313 0050 ...
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Страница 1598: ...Section 31 Electrical Characteristics Rev 0 50 May 18 2006 Page 1568 of 1588 REJ09B0313 0050 ...
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