p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 505

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 19 Flash Memory (0.18-µm F-ZTAT Version)
19.3
Register Descriptions
The registers/parameters that control flash memory are shown below. To read from or write to
these registers/parameters, the FLSHE bit in STCR must be set to 1. For details on STCR, see
section 3.2.3, Serial Timer Control Register (STCR).
• Flash code control status register (FCCS)
• Flash program code select register (FPCS)
• Flash erase code select register (FECS)
• Flash key code register (FKEY)
• Flash MAT select register (FMATS)
• Flash transfer destination address register (FTDAR)
• Download pass/fail result (DPFR)
• Flash pass/fail result (FPFR)
• Flash multipurpose address area (FMPAR)
• Flash multipurpose data destination area (FMPDR)
• Flash erase block select (FEBS)
• Flash programming/erasing frequency control (FPEFEQ)
There are several operating modes for accessing flash memory, for example, read mode/program
mode.
There are two memory MATs: user MAT and user boot MAT. The dedicated registers/parameters
are allocated for each operating mode and MAT selection. The correspondence between operating
modes and registers/parameters for use is shown in table 19.3.
Rev. 1.00 Sep. 21, 2006 Page 467 of 658
REJ09B0310-0100