Section 18 User Debug Interface (H-UDI)
Rev. 2.00 Mar 09, 2006 page 758 of 906
REJ09B0292-0200
18.3.3
Data Register (SDDR)
The data register (SDDR) comprises data register H (SDDRH) and data register L (SDDRL), each
of which has the following configuration.
Bit:
15
14
13
12
11
10
9
8
Initial value:
—
—
—
—
—
—
—
—
R/W:
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
7
6
5
4
3
2
1
0
Initial value:
—
—
—
—
—
—
—
—
R/W:
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
SDDRH and SDDRL are 16-bit registers that can be read and written to by the CPU. SDDR is
connected to TDO and TDI for serial data transfer to and from an external device.
32-bit data is input and output in serial data transfer. If data exceeding 32 bits is input, only the
last 32 bits will be stored in SDDR. Serial data is input starting from the MSB of SDDR (bit 15 of
SDDRH), and output starting from the LSB (bit 0 of SDDRL).
This register is not initialized by a reset, in standby mode, or by the
TRST
signal.
18.3.4
Bypass Register (SDBPR)
The bypass register (SDBPR) is a one-bit shift register. In bypass mode, SDBPR is connected to
TDI and TDO, and the chip is excluded from the board test when a boundary scan test is
conducted. SDBPR cannot be read or written to by the CPU.
18.3.5
Boundary scan register (SDBSR)
The boundary scan register (SDBSR), a shift register that controls the I/O terminals of this LSI, is
provided on the PAD.
Using the EXTEST mode or the SAMPLE/PRELOAD mode, a boundary scan test conforming to
the IEEE1149.1 standard can be performed.
For SDBSR, read/write by the CPU cannot be performed.
Summary of Contents for SH7616
Page 10: ...Rev 2 00 Mar 09 2006 page x of xxvi ...
Page 132: ...Section 2 CPU Rev 2 00 Mar 09 2006 page 106 of 906 REJ09B0292 0200 ...
Page 568: ...Section 12 16 Bit Free Running Timer FRT Rev 2 00 Mar 09 2006 page 542 of 906 REJ09B0292 0200 ...
Page 582: ...Section 13 Watchdog Timer WDT Rev 2 00 Mar 09 2006 page 556 of 906 REJ09B0292 0200 ...
Page 706: ...Section 16 Serial I O SIO Rev 2 00 Mar 09 2006 page 680 of 906 REJ09B0292 0200 ...
Page 820: ...Section 19 Pin Function Controller PFC Rev 2 00 Mar 09 2006 page 794 of 906 REJ09B0292 0200 ...
Page 932: ...Appendix D Package Dimensions Rev 2 00 Mar 09 2006 page 906 of 906 REJ09B0292 0200 ...
Page 935: ...SH7616 Hardware Manual ...