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| HD6432345 Datasheet, PDF (553/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual | |||
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4. Apart from the fact that flash memory can be erased and programmed, operation is the
same as in advanced single-chip mode.
Table 17.3 Operating Modes and ROM Area (ZTAT or Mask ROM)
Mode Pin
BCRL
Operating Mode
MD2 MD1 MD0 EAE On-Chip ROM
Mode 0 â
0
0
0
â H8S/2345 H8S/2344 H8S/2343 H8S/2341
Mode 1
Normal expanded
mode with on-chip
ROM disabled
1
â
â
â
â
Mode 2*1 Normal expanded
mode with on-chip
ROM enabled
1
0
Disabled Disabled Disabled Disabled
Mode 3*1 Normal single-chip
mode
1
Enabled Enabled Enabled Enabled
(56 kbytes) (56 kbytes) (56 kbytes) (32 kbytes)
Mode 4 Advanced
1
0
0
expanded mode
with on-chip ROM
disabled
â Disabled Disabled Disabled Disabled
Mode 5 Advanced
1
expanded mode
with on-chip ROM
disabled
Mode 6*1 Advanced
expanded mode
with on-chip ROM
enabled
1
0
0
Enabled Enabled*2 Enabled Enabled
(128
(96 kbytes) (64 kbytes) (32 kbytes)
kbytes)*2
1
Enabled Enabled
(64 kbytes) (64 kbytes)
Mode 7*1 Advanced single-
chip mode
1
0
Enabled Enabled*2
(128
(96 kbytes)
kbytes)*2
1
Enabled Enabled
(64 kbytes) (64 kbytes)
Notes: 1. Not used on ROMless version.
2. In H8S/2345 modes 6 and 7, the on-chip ROM available after a power-on reset is the
64-kbyte area comprising addresses H'000000 to H'00FFFF.
541
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