Console, Modem, I2c devices – Zilog EZ80L92 User Manual
Page 45: Dc characteristics, Console modem, C devices
eZ80L92 Development Kit
User Manual
UM012913-0407
I2C
Devices
41
Console
Connector P2 is the RS232 terminal, which can be used for observing the
console output. P2 can be connected to the HyperTerminal, if required.
Modem
Connector P3 provides a terminal for connecting an external modem, if
used with the eZ80L92 Development Kit. RS485 functionality will be
available in future eZ80
®
devices.
I
2
C Devices
The two I
2
C devices on the eZ80Acclaim!
®
Development Platform are
the U2 EEPROM and the U13 Configuration register. The
EEPROM provides 16 KB memory. The Configuration register provides
access to control the configuration of an application-specific function at
the application module interface. Neither device is utilized by the
eZ80L92 Development Kit software. You are free to develop proprietary
software for these two devices. The addresses for accessing these devices
are listed in
DC Characteristics
This section provides an estimate of the average current requirement
when different combinations of the application modules are plugged into
the eZ80Acclaim!
®
Development Platform.
Table 25. I
2
C Addresses
Device/Bit #
7
6
5
4
3
2
1
0
EEPROM (U10)*
1
0
1
0
0
A1
A0
R/W
Configuration Register (U13)
1
0
0
1
1
1
0
R/W
Note: *EEPROM address bit A0 and bit A1 are configured for 0s.