HD6417706 RENESAS [Renesas Technology Corp], HD6417706 Datasheet - Page 216

• Manufacturer Part Number: HD6417706
• Description: Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Rev. 4.00, 03/04, page 170 of 660
Bit
13
12
11
10
9
Bit Name
HIZMEM
HIZCNT
ENDIAN
A0BST1
A0BST0
Initial Value R/W
0
0
0/1*
0
0
1
R/W
R/W
R
R/W
R/W
Hi-Z memory control
Specifies the state of A25 to 0, BS, CS, RD/WR,
WE/DQM, RD, CE2A, CE2B and DRAK0/1 in standby
mode.
0: High-impedance state in standby mode.
1: Driven in standby mode.
High-Z Control
Specifies the state of the RAS and the CAS signals at
standby and bus right release.
0: High-impedance state at standby and bus right
1: Driven at standby and bus right release.
Endian Flag
Samples the value of the external pin designating
endian upon a power-on reset. Endian for all physical
spaces is decided by this bit, which is read-only.
0: (On reset) Endian setting external pin (MD5) is low.
1: (On reset) Endian setting external pin (MD5) is
Area 0 Burst ROM Control
Specify whether to use burst ROM in physical space
area 0. When burst ROM is used, set the number of
burst transfers.
00: Access area 0 as ordinary memory
01: Access area 0 as burst ROM (4 consecutive
10: Access area 0 as burst ROM (8 consecutive
01: Access area 0 as burst ROM (16 consecutive
Description
release.
Indicates the SH7706 is set as big endian.
high. Indicates the SH7706 is set as little endian.
accesses). Can be used when bus width is 8, 16,
or 32.
accesses). Can be used when bus width is 8 or
16.
accesses). Can be used only when bus width is 8.