SH7751 Datasheet, PDF (38/1224 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Item
21.1.3 Pin
Configuration
Page
826
21.2.5 Boundary Scan 829 to
Register (SDBSR)
842
Table 21.3 Structure of
Boundary Scan Register
21.3.4 Boundary Scan 845
(EXTEST,
SAMPLE/PRELOAD,
BYPASS)
21.4 Usage Notes
22.1.1 Features
847
22.1.3 Pin
850
Configuration
Table 22.1 Pin
Configuration
22.2.1 PCI
857
Configuration Register 0
(PCICONF0)
Revision (See Manual for Details)
Note amended
3. Fixed to the ground or connected to the same signal line as
RESET, or to a signal line that behaves in the same way.
However, there is a problem when this pin is fixed to the
ground. TRST is pulled up in the chip so, when this pin is
fixed to the ground via external connection, a minute current
will flow. The size of this current is determined by the rating
of the pull-up resistor. Although this current has no effect on
the chip's operation, unnecessary current will be dissipated.
Description amended and table replaced
The boundary scan register (SDBSR) is a shift register that is
placed on the pads to control the chip's I/O pins. This register
can perform a boundary scan test equivalent to the JTAG (IEEE
Std 1149.1) standard using EXTEST, SAMPLE, and PRELOAD
commands. …
Description amended and 6. moved to 21.4
In this LSI, setting a command from the H-UDI in SDIR can
place the H-UDI pins in the boundary scan mode. However, the
following limitations apply.
5. moved from 21.3.4 6.
Description and Notes amended
• Supports a subset of PCI version 2.1.
…
Note: * MPX is only supported by the SH7751R and is not
supported by the SH7751.
Note amended
3. Pull down this pin to low level when IDSEL is not in use. If a
configuration access to an external PCI device occurs while
IDSEL is high level, the PCIC itself may respond.
Note added
Note: * The vendor ID H'1054 specifies Hitachi, Ltd., but the
SH7751 and SH7751R are now products of
Renesas Technology Corp. For information on
these products, contact Renesas Technology Corp.
Rev.4.00 Oct. 10, 2008 Page xxxviii of xcviii
REJ09B0370-0400