HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 888

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 19 ROM
19.22.9 Register Configuration
The registers used to control the on-chip flash memory when enabled are shown in table 19.48.
In order to access the FLMCR1, FLMCR2, EBR1, and EBR2 registers, the FLSHE bit must be set
to 1 in SYSCR2 (except RAMER).
Table 19.48 Flash Memory Registers
Register Name
Flash memory control register 1
Flash memory control register 2
Erase block register 1
Erase block register 2
System control register 2
RAM emulation register
Notes: 1. Lower 16 bits of the address.
Rev.6.00 Sep. 27, 2007 Page 858 of 1268
REJ09B0220-0600
2. Flash memory. Registers selection is performed by the FLSHE bit in system control
3. In modes in which the on-chip flash memory is disabled, a read will return H'00, and
4. When a high level is input to the FWE pin, the initial value is H'80.
5. When a low level is input to the FWE pin, or if a high level is input and the SWE1 bit in
6. FLMCR1, FLMCR2, EBR1, and EBR2 are 8-bit registers. Only byte accesses are valid
7. The SYSCR2 register can only be used in the F-ZTAT versions. In the mask ROM
register 2 (SYSCR2).
writes are invalid. Writes are also disabled when the FWE bit is cleared to 0 in
FLMCR1.
FLMCR1 is not set, bits EB11 to EB0 are initialized to 0, and if the SWE2 bit is not set,
bits EB15 to EB12 are initialized to 0.
for these registers, the access requiring 2 states.
versions this register will return an undefined value if read, and cannot be modified.
Abbreviation R/W
FLMCR1 *
FLMCR2 *
EBR1 *
EBR2 *
SYSCR2 *
RAMER
6
6
6
6
7
R/W *
R/W *
R/W *
R/W *
R/W
R/W
3
3
3
3
H'00/H'80 *
H'00
H'00 *
H'00 *
H'00
H'00
Initial Value
5
5
4
H'FEDB
Address *
H'FFC8 *
H'FFC9 *
H'FFCA *
H'FFCB *
H'FF42
2
2
2
2
1