Section 42 User Debugging Interface (H-UDI)
Rev. 1.00 Oct. 01, 2007 Page 1800 of 1956
REJ09B0256-0100
3. This pin should be connected to ground, the
PRESET
, or another pin which operates in
the same manner as the
PRESET
pin. However, when connected to a ground pin, the
following problem occurs. Since the
TRST
pin is pulled up within this LSI, a weak
current flows when the pin is externally connected to ground pin. The value of the
current is determined by a resistance of the pull-up MOS for the port pin. Although this
current does not affect the operation of this LSI, it consumes unnecessary power.
The TCK clock or the CPG of this LSI should be set to ensure that the frequency of the TCK clock
is less than the peripheral-clock frequency of this LSI.
42.3
Boundary Scan TAP Controllers (IDCODE, EXTEST,
SAMPLE/PRELOAD, and BYPASS)
The H-UDI contains two separate TAP controllers: one for controlling the boundary-scan function
and another for controlling the H-UDI reset and interrupt functions. Assertion of
TRST
, for
example at power-on reset, activates the boundary-scan TAP controller and enables the boundary-
scan function prescribed in the JTAG standards. Executing a switchover command to the H-UDI
allows usage of the H-UDI reset and H-UDI interrupts. This LSI, however, has the following
limitations:
•
Clock-related pins (EXTAL, XTAL, EXTAL2, and XTAL2) are out of the scope of the
boundary-scan test.
•
Reset-related pins (
PRESET
,
MRESET
) are out of the scope of the boundary-scan test.
•
H-UDI-related pins (TCK, TDI, TDO, TMS, TRST and MPMD) are out of the scope of the
boundary-scan test.
•
DDRIF-related pins are out of the scope of the boundary-scan test
•
XRTCTBI
, USBP, USBM, DA0, DA1, and AN0 to AN3 pins are out of the scope of the
boundary-scan test
•
During the boundary scan (IDCODE, EXTEST, SAMPLE/PRELOAD, BYPASS, and H-UDI
switchover command), the maximum TCK signal frequency is 2 MHz.
•
The external controller has 8-bit access to the boundary-scan TAP controller via the H-UDI.
Note: During the boundary scan, the
PRESET
pin should be fixed high-level.
Table 42.2 shows the commands supported by the boundary-scan TAP controller.
Summary of Contents for SH7763
Page 2: ...Rev 1 00 Oct 01 2007 Page ii of lxvi ...
Page 122: ...Section 2 Programming Model Rev 1 00 Oct 01 2007 Page 56 of 1956 REJ09B0256 0100 ...
Page 144: ...Section 3 Instruction Set Rev 1 00 Oct 01 2007 Page 78 of 1956 REJ09B0256 0100 ...
Page 170: ...Section 4 Pipelining Rev 1 00 Oct 01 2007 Page 104 of 1956 REJ09B0256 0100 ...
Page 282: ...Section 7 Caches Rev 1 00 Oct 01 2007 Page 216 of 1956 REJ09B0256 0100 ...
Page 378: ...Section 9 Interrupt Controller INTC Rev 1 00 Oct 01 2007 Page 312 of 1956 REJ09B0256 0100 ...
Page 514: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Oct 01 2007 Page 448 of 1956 REJ09B0256 0100 ...
Page 630: ...Section 13 PCI Controller PCIC Rev 1 00 Oct 01 2007 Page 564 of 1956 REJ09B0256 0100 ...
Page 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
Page 732: ...Section 17 Watchdog Timer and Reset WDT Rev 1 00 Oct 01 2007 Page 666 of 1956 REJ09B0256 0100 ...
Page 752: ...Section 18 Power Down Mode Rev 1 00 Oct 01 2007 Page 686 of 1956 REJ09B0256 0100 ...
Page 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Page 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
Page 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Page 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Page 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Page 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Page 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
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