HD64F3028F25 Datasheet, PDF (608/925 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

18.2.2 Pin Configuration
The flash memory is controlled by means of the pins shown in table 18.2.
Table 18.2 Flash Memory Pins
Pin Name
Reset
Flash write enable
Mode 2
Mode 1
Mode 0
Transmit data
Receive data
Abbreviation
RES
FWE
MD2
MD1
MD0
TxD1
RxD1
I/O
Input
Input
Input
Input
Input
Output
Input
Function
Reset
Flash program/erase protection by hardware
Sets H8/3028F-ZTAT operating mode
Sets H8/3028F-ZTAT operating mode
Sets H8/3028F-ZTAT operating mode
Serial transmit data output
Serial receive data input
18.2.3 Register Configuration
The registers used to control the on-chip flash memory when enabled are shown in table 18.3.
Table 18.3 Flash Memory Registers
Register Name
Abbreviation R/W
Initial Value Address^*1
Flash memory control register 1
FLMCR1
R/W
H'00^*2
H'EE030
Flash memory control register 2
FLMCR2
R
H'00
H'EE031
Erase block register 1
EBR1
R/W
H'00
H'EE032
Erase block register 2
EBR2
R/W
H'00
H'EE033
RAM control register
RAMCR
R/W
H'F0
H'EE077
Notes: FLMCR1, FLMCR2, EBR1, EBR2, and RAMCR are 8-bit registers, and should be
accessed by byte access.
1. Lower 20 bits of address in advanced mode.
2. When a high level is input to the FWE pin, the initial value is H'80.
Rev. 2.00, 09/03, page 576 of 890