SH7750 datasheet(31/1162 Pages) RENESAS

31 / 1162 page

Rev.7.00 Oct. 10, 2008 Page xxxi of lxxxiv

REJ09B0366-0700

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Page

Revision (See Manual for Details)

21.2.5 Boundary Scan

(SH7750R Only)

887

Description amended

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.

888

Table amended

No.

Pin Name

Type

to TDO

Table 21.3

Configuration of the

Boundary Scan Register

345

CKIO2ENB

344

MD6/

IOIS16

890

Table amended

No.

Pin Name

Type

CS0

OUT

RDY

from TDI

21.3.4 Boundary Scan

(EXTEST,

SAMPLE/PRELOAD,

BYPASS) (SH7750R

Only)

893

Description amended

In the SH7750R, 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.

...

4. With EXTEST, assert the

MRESET pin (low), the RESET pin

(low), and the CA pin (high). With SAMPLE/PRELOAD,

assert the CA pin (high).

6. Deleted

21.4 Usage Notes

894

Description added

6. In BYPASS mode on the SH7750 or SH7750S, the contents

of the bypass register (SDBPR) are undefined in the

Capture-DR state. On the SH7750R, SDBPR has a value of

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