D12320VF25IV Datasheet, PDF (831/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 19 ROM
19.13.8 Pin Configuration
The flash memory is controlled by means of the pins shown in tables 19.26.
Table 19.26 Flash Memory Pins
Pin Name
Reset
Flash write enable
Mode 2
Mode 1
Mode 0
Port 64
Port 65
Port 66
Transmit data
Receive data
Abbreviation I/O
RES
Input
FWE
Input
MD2
Input
MD1
Input
MD0
Input
P64
Input
P65
Input
P66
Input
TxD1
Output
RxD1
Input
Function
Reset
Flash program/erase protection by hardware
Sets MCU operating mode
Sets MCU operating mode
Sets MCU operating mode
Sets MCU operating mode in PROM mode
Sets MCU operating mode in PROM mode
Sets MCU operating mode in PROM mode
Serial transmit data output
Serial receive data input
Rev.6.00 Sep. 27, 2007 Page 799 of 1268
REJ09B0220-0600