483
17.3
Flash Memory Register Descriptions
17.3.1
Flash Memory Control Register (FLMCR)
FLMCR is an 8-bit register used for flash memory operating mode control. Program-verify mode
or erase-verify mode is entered by setting SWE to 1 when FWE = 1, then setting the
corresponding bit. Program mode is entered by setting SWE to 1 when FWE = 1, then setting the
PSU bit, and finally setting the P bit. Erase mode is entered by setting SWE to 1 when FWE = 1,
then setting the ESU bit, and finally setting the E bit. FLMCR is initialized by a reset, and in
hardware standby mode and software standby mode. Its initial value is H'80 when a high level is
input to the FWE pin, and H'00 when a low level is input. In mode 6 the FWE pin must be fixed
low, as flash memory on-board programming is not supported. Therefore, bits in this register
cannot be set to 1 in mode 6. When on-chip flash memory is disabled, a read will return H'00, and
writes are invalid. When setting bits 6 to 0 in this register to 1, each bit should be set individually.
Writes to bits ESU, PSU, EV, and PV in FLMCR are enabled only when FWE = 1 and SWE = 1;
writes to the E bit only when FWE = 1, SWE = 1, and ESU = 1; and writes to the P bit only when
FWE = 1, SWE = 1, and PSU = 1.
1/0
R
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
Initial value
Read/Write
7
FWE
0
R
6
SWE
0
R
5
ESU
0
R
4
PSU
0
R
3
EV
0
R
0
P
0
R
2
PV
0
R
1
E
0
R
Bit
Initial value
Read/Write
Modes 5
and 7
Modes 1
to 4, and 6
Program mode
Selects program
mode transition
or clearing
Erase mode
Selects erase mode
transition or clearing
Program-verify mode
Selects program-verify mode
transition or clearing
Erase-verify mode
Selects erase-verify mode transition or clearing
Program setup
Prepares for a transition to program mode
Erase setup
Prepares for a transition to erase mode
Software write enable
Enables or disables programming/erasing
Flash write enable
Sets hardware protection against flash memory programming/erasing
Содержание H8/3060
Страница 10: ......
Страница 16: ......
Страница 114: ...66 ...
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 ...