Datasheet

Section 19 ROM
Rev.6.00 Sep. 27, 2007 Page 799 of 1268
REJ09B0220-0600
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 Abbreviation I/O Function
Reset RES Input Reset
Flash write enable FWE Input Flash program/erase protection by hardware
Mode 2 MD2 Input Sets MCU operating mode
Mode 1 MD1 Input Sets MCU operating mode
Mode 0 MD0 Input Sets MCU operating mode
Port 64 P64 Input Sets MCU operating mode in PROM mode
Port 65 P65 Input Sets MCU operating mode in PROM mode
Port 66 P66 Input Sets MCU operating mode in PROM mode
Transmit data TxD1 Output Serial transmit data output
Receive data RxD1 Input Serial receive data input