Zilog eZ80F92 - Manual (Page 57)

eZ80F92 Development Kit
User Manual
UM013911-0607 DC Characteristics
53
DC Characteristics
As different combinations of application modules are loaded onto the
eZ80Acclaim!
® Development Platform, current requirements change.
Please see Table 26 on page 43 to reference current consumption values
for these different module combinations.
A 0.1-Farad capacitor is provided on the eZ80F92 Flash Module as a
short-term battery backup for the RTC (see the
Schematic Diagrams on
page 61). The part number of the capacitor made by Panasonic is
EECS0HDV. The capacitor is connected to RTC_VDD to provide power
to the RTC when main power to the chip is removed; it is also connected
to the 3.3 V supply to the chip for recharging. The RTC can operate down
to 3.0 V; it requires 10 µA of current. The (keep alive) time this capacitor
can supply power to the RTC, from 3.3 V to 3.0 V, is approximately 3000
seconds, or 50 minutes.
Flash Loader Utility
The Flash Loader utility allows the user a convenient way to program on-
chip Flash memory. Please refer to the External Flash Loader Product
User Guide (PUG0016) for more details.
Mounting the Module
When mounting the eZ80F92 Flash Module onto the eZ80Acclaim! ®
Development Platform, check its orientation to the platform to ensure a
correct fit. Pin 1 of JP1 on the eZ80Acclaim!
® Development Platform
must align with pin 1 of JP1 on the eZ80Acclaim! ® Development Plat-
form; Pin 1 of JP2 on the eZ80F92 Flash Module must align with pin 1 of
JP2 on the eZ80Acclaim!
® Development Platform, etc.