HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 858

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 19 ROM
19.20
19.20.1 PROM Mode Setting
Programs and data can be written and erased in PROM mode as well as in the on-board
programming modes. In PROM mode, the on-chip ROM can be freely programmed using a
PROM programmer that supports the Renesas microcomputer device type with 256-kbyte on-chip
flash memory (FZTAT256V3A). 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 19.34 shows PROM mode pin settings.
Table 19.34 PROM Mode Pin Settings
Pin Names
Mode pins: MD2, MD1, MD0
Mode setting pins: P66, P65, P64
FWE pin
STBY pin
RES pin
XTAL, EXTAL pins
Other pins requiring setting: P32, P25
Rev.6.00 Sep. 27, 2007 Page 828 of 1268
REJ09B0220-0600
Flash Memory PROM Mode
Settings/External Circuit Connection
Low-level input
High-level input to P66, low-level input to P65 and P64
High-level input (in auto-program and auto-erase
modes)
High-level input (do not select hardware standby mode)
Reset circuit
Oscillator circuit
High-level input to P32, low-level input to P25