Section 42 User Debugging Interface (H-UDI)
Rev. 1.00 Oct. 01, 2007 Page 1824 of 1956
REJ09B0256-0100
42.5.2 H-UDI
Reset
A power-on reset is generated by the SDIR command. After the H-UDI reset assert command has
been sent from the H-UDI pin, sending the H-UDI reset negate command resets the CPU (see
figure 42.4). The required time between the H-UDI reset assert and H-UDI reset negate commands
is the same as the time for holding the reset pin low in order to reset this LSI by a power-on reset.
H-UDI reset assert
H-UDI reset negate
H-UDI pin
Chip internal reset
CPU state
Reset handling
Reset
Normal
Figure 42.4 H-UDI Reset
42.5.3 H-UDI
Interrupt
The H-UDI interrupt function generates an interrupt by setting the appropriate command in SDIR
from the H-UDI. An H-UDI interrupt request signal is asserted when the INTREQ bit in SDINT is
set to 1 by setting the appropriate command. Since the interrupt request signal is not negated until
the INTREQ bit is cleared to 0 by software, it is not possible to lose the interrupt request. While an
H-UDI interrupt command is set in SDIR, SDINT is connected between the TDI and TDO pins.
42.6 Usage
Notes
Once an SDIR command is set, it will be changed only by an assertion of the
TRST
signal,
making the TAP controller Test-Logic-Reset state, or writing other commands from the H-UDI.
The H-UDI is used for emulator connection. Therefore, H-UDI functions cannot be used when
using an emulator.
Содержание SH7763
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Страница 686: ...Section 14 Direct Memory Access Controller DMAC Rev 1 00 Oct 01 2007 Page 620 of 1956 REJ09B0256 0100 ...
Страница 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
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Страница 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Страница 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
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Страница 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Страница 1184: ...Section 27 Serial Communication Interface with FIFO SCIF Rev 1 00 Oct 01 2007 Page 1118 of 1956 REJ09B0256 0100 ...
Страница 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Страница 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Страница 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Страница 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
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