68
Mode 5 is an externally expanded mode that enables access to external memory and peripheral
devices and also enables access to the on-chip ROM. Mode 5 supports a maximum address space
of 16 Mbytes.
Modes 6 and 7 are single-chip modes in which the chip operates using only the on-chip ROM,
RAM, and I/O registers. All ports are available in these modes. Mode 6 supports a maximum
address space of 64 kbytes. Mode 7 supports a maximum address space of 1 Mbyte.
The H8/3062 Series can be used only in modes 1 to 7. The inputs at the mode pins must select one
of these seven modes. The inputs at the mode pins must not be changed during operation. Set the
reset state before changing the inputs at these pins.
3.1.2
Register Configuration
The H8/3062 Series has a mode control register (MDCR) that indicates the inputs at the mode pins
(MD
2
to MD
0
), and a system control register (SYSCR). Table 3.2 summarizes these registers.
Table 3.2
Registers
Address
*
Name
Abbreviation
R/W
Initial Value
H'EE011
Mode control register
MDCR
R
Undetermined
H'EE012
System control register
SYSCR
R/W
H'09
Note:
*
Lower 20 bits of the address in advanced mode.
3.2
Mode Control Register (MDCR)
MDCR is an 8-bit read-only register that indicates the current operating mode of the
H8/3062 Series.
Bit
Initial value
Read/Write
7
—
1
—
6
—
1
—
5
—
0
—
4
—
0
—
3
—
0
—
0
MDS0
—
R
*
2
MDS2
—
R
1
MDS1
—
R
*
*
Mode select 2 to 0
Bits indicating the current
operating mode
Reserved bits
Note: Determined by pins MD to MD .
*
2
0
Содержание H8/3060
Страница 10: ......
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Страница 132: ...84 ...
Страница 144: ...96 ...
Страница 170: ...122 ...
Страница 212: ...164 ...
Страница 268: ...220 ...
Страница 332: ...284 ...
Страница 396: ...348 ...
Страница 494: ...446 ...
Страница 698: ...650 ...
Страница 729: ...681 H8 3062F ZTAT or H8 3062F ZTAT R mask version Ports 1 2 5 LED 600 Ω Figure 22 5 Sample LED Circuit ...
Страница 748: ...700 H8 3064F ZTAT B mask version Ports 1 2 5 LED 600 Ω Figure 22 8 Sample LED Circuit ...
Страница 777: ...729 H8 3062F ZTAT B mask version Ports 1 2 5 LED 600 Ω Figure 22 14 Sample LED Circuit ...
Страница 810: ...762 ...
Страница 994: ...946 ...