h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 413

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

14.2
Table 14.2 shows the flash memory pin configuration.
Table 14.2 Pin Configuration
14.3
The registers/parameters which control flash memory are shown in the following.
• 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)
• RAM emulation register (RAMER)
• Download pass and fail result (DPFR)
• Flash pass and fail result (FPFR)
• Flash multipurpose address area (FMPAR)
• Flash multipurpose data destination area (FMPDR)
• Flash erase Block select (FEBS)
• Flash program and erase 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 of operating modes
and registers/parameters for use is shown in table 14.3.
Pin Name
RES
FWE
MD2
MD1
TxD0
RxD0
Input/Output Pins
Register Descriptions
Input/Output
Input
Input
Input
Input
Output
Input
Function
Reset
Flash memory programming/erasing enable pin
Sets operating mode of this LSI
Sets operating mode of this LSI
Serial transmit data output (used in boot mode)
Serial receive data input (used in boot mode)
Rev. 2.00, 03/04, page 381 of 534