Internal Flash Memory
16-6
Table 16-5-2 lists the functions of the external pins in flash memory mode.
Table 16-5-2 Pin Functions
When first applying power, it is necessary to input a signal that is low for at least 1 ms to the reset pin NROMRST.
Pin Name Input/Output Description
PA[17:1] Input Address
PD[15:0] Input/Output Data
NCE Chip enable
MODE Mode
NOE Output enable
NWE Write enable
EErase enable
FROM Flash memory/microcontroller mode switch
TEST[3:0] Test signal * Input x'0.
NROMRST Reset
VDD Power supply
VPP Power supply
VSS Power supply
Input
Input
Input
Input
Input
Input
Input
Input