HD6432345 Datasheet, PDF (600/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

17.13 Flash Memory Writer Mode
17.13.1 Writer Mode Setting
Programs and data can be written and erased in writer mode as well as in the on-board
programming modes. In writer mode, the on-chip ROM can be freely programmed using a PROM
programmer that supports Hitachi microcomputer device types with 128-kbyte on-chip flash
memory. In writer mode, the on-chip ROM can be freely programmed using a PROM programmer
that supports the Hitachi microcomputer device type with 128-kbyte on-chip flash memory. Flash
memory read mode, auto-program mode, auto-erase mode, and status read mode are supported
with this device type. In auto-program mode, auto-erase mode, and status read mode, a status
polling procedure is used, and in status read mode, detailed internal signals are output after
execution of an auto-program or auto-erase operation.
Table 17.18 shows writer mode pin settings.
Table 17.18 Writer Mode Pin Settings
Pin Names
Mode pins: MD₂, MD₁, MD₀
Mode setting pins: PF₂, PF₁, PF₀
FWE pin
STBY pin
RES pin
NMI pin
XTAL, EXTAL pins
Other pins requiring setting: P2₃, P2₅
Settings/External Circuit Connection
Low-level input
High-level input to PF₂, low-level input to PF₁ and PF₀
High-level input (in auto-program and auto-erase
modes)
High-level input (do not select hardware standby mode)
Power-on reset circuit
High-level input (for power-on reset)
Oscillator circuit
High-level input to P2₃ and P2₅
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