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D12320VF25IV Datasheet, PDF (808/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents | |||
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Section 19 ROM
19.11 Flash Memory PROM Mode
19.11.1 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 512-kbyte on-chip
flash memory (FZTAT512V3A). 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 19.13 shows PROM mode pin settings.
Table 19.13 PROM Mode Pin Settings
Pin Names
Mode pins: MD2, MD1, MD0
Mode setting pins: P66, P65, P64
STBY pin
RES pin
XTAL, EXTAL pins
Other pins requiring setting: P32, P25
Settings/External Circuit Connection
Low-level input
High-level input to P66, low-level input to P65 and P64
High-level input (do not select hardware standby mode)
Reset circuit
Oscillator circuit
High-level input to P32, low-level input to P25
19.11.2 Socket Adapters and Memory Map
In PROM mode, a socket adapter is connected to the chip as shown in figure 19.20. Figure 19.19
shows the on-chip ROM memory map and figure 19.20 shows the socket adapter pin assignments.
MCU mode address
H'00000000
PROM mode address
H'00000
On-chip
ROM space
(384 kbytes)
H'0005FFFF
H'5FFFF
Figure 19.19 Memory Map in PROM Mode
Rev.6.00 Sep. 27, 2007 Page 776 of 1268
REJ09B0220-0600
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