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Section 19 H8/3062 Internal Voltage
Step-Down Version ROM
[H8/3062F-ZTAT B-Mask Version, Mask ROM B-Mask Versions
of H8/3062, H8/3061, and H8/3060]
19.1
Overview
The H8/3062F-ZTAT B-mask version has 128 kbytes of on-chip flash memory. The mask ROM
B-mask versions of H8/3062, H8/3061, H8/3060 have 128 kbytes, 96 kbytes, 64 kbytes of on-chip
mask ROM, respectively. The flash memory is connected to the CPU by a 16-bit data bus. The
CPU accesses both byte data and word data in two states, enabling rapid data transfer.
The on-chip ROM is enabled and disabled by setting the mode pins (MD
2
to MD
0
) as shown in
table 19.1.
The on-chip flash memory product (H8/3062F-ZTAT B-mask version) can be erased and
programmed on-board, as well as with a special-purpose PROM programmer.
Table 19.1
Operating Modes and ROM
Mode Pins
Mode
MD2
MD1
MD0
On-Chip ROM
Mode 1 (expanded 1-Mbyte mode with on-chip ROM
disabled)
0
0
1
Disabled (external
address area)
Mode 2 (expanded 1-Mbyte mode with on-chip ROM
disabled)
0
1
0
Mode 3 (expanded 16-Mbyte mode with on-chip ROM
disabled)
0
1
1
Mode 4 (expanded 16-Mbyte mode with on-chip ROM
disabled)
1
0
0
Mode 5 (expanded 16-Mbyte mode with on-chip ROM
enabled)
1
0
1
Enabled
Mode 6 (single-chip normal mode)
1
1
0
Mode 7 (single-chip advanced mode)
1
1
1
Summary of Contents for H8/3060
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