69
Bits 7 and 6—Reserved: These bits can not be modified and are always read as 1.
Bits 5 to 3—Reserved: These bits can not be modified and are always read as 0.
Bits 2 to 0—Mode Select 2 to 0 (MDS2 to MDS0): These bits indicate the logic levels at pins
MD
2
to MD
0
(the current operating mode). MDS2 to MDS0 correspond to MD
2
to MD
0
. MDS2 to
MDS0 are read-only bits. The mode pin (MD
2
to MD
0
) levels are latched into these bits when
MDCR is read.
Note:
The versions with on-chip flash memory have a boot mode in which flash memory can be
programmed. In boot mode, the MDS2 bit value is the inverse of the level at the MD
2
pin.
3.3
System Control Register (SYSCR)
SYSCR is an 8-bit register that controls the operation of the H8/3062 Series.
Bit
Initial value
Read/Write
7
SSBY
0
R/W
6
STS2
0
R/W
5
STS1
0
R/W
4
STS0
0
R/W
3
UE
1
R/W
0
RAME
1
R/W
2
NMIEG
0
R/W
1
SSOE
0
R/W
Software standby
Enables transition to software standby mode
User bit enable
Selects whether to use the UI bit in CCR
as a user bit or an interrupt mask bit
NMI edge select
Selects the valid edge
of the NMI input
RAM enable
Enables or
disables
on-chip RAM
Standby timer select 2 to 0
These bits select the waiting time at
recovery from software standby mode
Selects the output state
of the address bus and
bus control signals in
software standby mode
Software standby
output port enable
Содержание H8/3060
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Страница 170: ...122 ...
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Страница 268: ...220 ...
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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 ...