Oracle e-series, Руководство по установке

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Identifying the Internal Components 2-5

Two I2C-bus interfaces supporting fast mode with a data rate of 400 kbit/s
–
One IC2 interface is dedicated to the optional Smart Battery.
–
The second IC2 interface is dedicated to the on-board EEPROM, U23. The
EEPROM is used to store application data.

52 General Purpose I/O (GPIO) pins with configurable pull-up/down resistors.
Functions include:
–
Base Station E-Series Battery and Power LEDs
–
Powered COM Port voltage control and monitoring
–
Tablet E-Series 11 Detection
–
RS422/RS232 Mode Select for the IDN COM4 interface
–
Cash Drawer Open/Closed
–
Base Station E-Series Board Revision
–
12V/24V Cash Drawer Voltage Select

12-bit Analog-to-Digital Converter (ADC) with conversion rates up to 200 kHz
–
All on-board and DSUB voltages are monitored by the ADC and displayed
in the Base Station E-Series MCU API selection from the Diagnostics Utility.

Integrated PMU (Power Management Unit) with four reduced power modes
Base Station E-Series/Tablet E-Series 11 Detection
When the Base Station E-Series is connected to AC Power and the Tablet E-Series 11 is
not installed, the Base Station E-Series MCU is in a low power sleep mode and all power
supply voltages are off (with the exception of a standby voltage).
As shown in the block diagram, HEAD_DETECT is an input to the Base Station E-Series
from the Tablet E-Series 11.

HEAD_DETECT is forced active when the Tablet E-Series 11 is installed. This
wakes the Base Station E-Series MCU from sleep mode and it responds by
asserting PWR_CTRL.

An active PWR_CTRL enables all Base Station E-Series Main Board voltage
regulators including 3.3V, 5V, 9V, 12V, and 19.5V. After the voltages are active,
the MCU turns on the Power LED.

When the Tablet E-Series 11 is removed, the MCU waits for re-installation for up
to 20 seconds. If re-installation does not occur, the MCU disables PWR_CTRL to
turn off the internal regulators, turns off the Power LED and enters a low power
sleep mode.
U65 - USB5537 7-Port SuperSpeed or High Speed Hub Controller
The SMSC USB5537 is a 7-Port Hub supporting both USB 3.0 or SuperSpeed (SS) and
USB 2.0 Full Speed (FS) USB Interfaces as well as complete coverage of all compatible
operating speeds. USB modes supported include:

5 Gbps SuperSpeed (SS)

480 Mbps High-Speed (HS)

12 Mbps Full-Speed (FS)

1.5 Mbps Low-Speed (LS)
As shown in the block diagram, USB 3.0 interface signals from the Tablet E-Series 11 pass
through the multi-function connector to the Upstream port of U65. U65 generates all Base
Station E-Series USB and Serial Ports from this input.