H8S-2214 Datasheet, PDF (623/936 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2100 Series

Section 15 ROM
15.7.6 Serial Control Register X (SCRX)
Bit:
7
6
5
4
3
2
1
0
—
—
—
— FLSHE —
—
—
Initial value:
0
0
0
0
0
0
0
0
R/W: R/W R/W R/W R/W R/W R/W R/W R/W
SCRX is an 8-bit readable/writable register that performs register access control, and on-chip flash
memory control (including the F-ZTAT version).
SCRX is initialized to H'00 by a reset and in hardware standby mode.
Bits 7 to 4—Reserved: Only 0 should be written to these bits.
Bit 3—Flash Memory Control Register Enable (FLSHE): Controls CPU access to the flash
memory control registers (FLMCR1, FLMCR2, EBR1, and EBR2). Setting the FLSHE bit to 1
enables read/write access to the flash memory control registers. If FLSHE is cleared to 0, the flash
memory control registers are deselected. In this case, the flash memory control register contents
are retained. When the FLSHE bit is set to 1, the flash memory control registers can be read and
written to. When FLSHE is cleared to 0, the flash memory control registers are deselected. In this
case, the contents of the flash memory control registers are retained.
Bit 3
FLSHE
0
1
Description
Flash control registers deselected in area H'FFFFA8 to H'FFFFAC
Flash control registers selected in area H'FFFFA8 to H'FFFFAC
(Initial value)
Bits 2 to 0—Reserved: Only 0 should be written to these bits.
Rev.4.00 Sep. 18, 2008 Page 563 of 872
REJ09B0189-0400