HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 355

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Note:
Bit
4
3
2
1
0
*
Bit Name

ENDIAN

HIZMEM
HIZCNT
The external pin (MD5) for specifying endian is sampled on power-on reset. When big
endian is specified, this bit is read as 0 and when little endian is specified, this bit is
read as 1.
Initial
Value
1
0/1*
0
0
0
R/W
R/W
R
R
R
R/W
Description
Reserved
This bit is always read as 1. The write value should always
be 1.
Endian Flag
Samples the external pin for specifying endian on power-on
reset (MD5). All address spaces are defined by this bit. This
is a read-only bit.
0: The external pin for specifying endian (MD5) was low level
1: The external pin for specifying endian (MD5) was high
Reserved
This bit is always read as 0. The write value should always
be 0.
High-Z Memory Control
Specifies the pin state in standby mode for A25 to A0, BS,
CSn, RD/WR, WEn(BEn)/DQMxx, and RD. When a bus is
released, these pins enter the high-impedance state
regardless of the setting of this bit.
0: High impedance in standby mode
1: Driven in standby mode
High-Z Control
Specifies the state in standby mode and bus released for
CKIO, CKE, RAS, and CAS.
0: High impedance in standby mode and bus released for
1: Driven in standby mode and bus released for CKIO, CKE,
on power-on reset. This LSI is being operated as big
endian.
level on power-on reset. This LSI is being operated as
little endian.
CKIO, CKE, RAS, and CAS.
RAS, and CAS.
Rev. 3.00 Jan. 18, 2008 Page 293 of 1458
Section 9
Bus State Controller (BSC)
REJ09B0033-0300