Siemens TC65 Hardware Interface Description page 75

TC65 Hardware Interface Description
Strictly confidential / Draft
Function Signal name
ASC1 RXD1
Serial TXD1
interface
CTS1
RTS1
2
I C interface I2CCLK _SPICLK
I2CDAT_SPIDO
SPI SPIDI
Serial I2CDAT_SPIDO
Peripheral
I2CCLK_SPICLK
Interface
SPICS
USB VUSB_IN
USB_DN
USB_DP
General GPIO1
Purpose
GPIO2
Input/Output
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
GPIO10
TC65_HD_V00.521
IO Signal form and level
O V max = 0.2V at I = 2mA
OL
V min = 2.55V at I = -0.5mA
I
OH
V max = 3.05V
OH
O
I
V max = 0.8V
IL
V min = 2.0V
IH
V max = VEXTmin + 0.3V = 3.05V
IH
O V max = 0.2V at I = 2mA
OL
V min = 2.55V at I = -0.5mA
OH
V max = 3.05V
OH
I/O V max = 0.2V at I = 2mA
OL
V max = 0.8V
IL
V min = 2.0V
IH
V max = min + 0.3V = 3.05V
VEXT
IH
I V max = 0.2V at I = 2mA
OL
V min = 2.55V at I = -0.5mA
O
OH
V max = 3.05V
OH
O
O
V max = 0.8V
IL
V min = 2.0V,
IH
V max = VEXTmin + 0.3V = 3.05V
IH
I V min = 4.0V
IN
V max = 5.25V
IN
I/O Differential Output Crossover voltage
Range
I/O
V min = 1.5V, V
CRS CRS
Driver Output Resistance
Z typ = 32Ohm
DRV
I/O V max = 0.2V at I = 2mA
OL
V min = 2.55V at I = -0.5mA
I/O
OH
V max = 3.05V
OH
I/O
I/O
V max = 0.8V
IL
V min = 2.0V,
I/O
IH
V max = VEXTmin + 0.3V = 3.05V
I/O IH
I/O
I/O
I/O
I/O
Page 75 of 99
Comment
Without Java: 4-wire serial
interface for AT commands or
data stream.
Under Java: Only the RXD1
line of TC65 is used and
serves as System.out.
If lines are unused keep pins
open.
2
I C interface is only available
if the two pins are not used as
SPI interface.
I2CDAT is configured as
Open Drain and needs a pull-
up resistor in the host
application.
According to the I
Specification Version 2.1 for
the fast mode a rise time of
max. 300ns is permitted.
There is also a maximum
V
OL
The value of the pull-up
depends on the capacitive
load of the whole system (I2C
Slave + lines). The maximum
sink current of I2CDAT and
I2CCLK is 4mA.
If lines are unused keep pins
open.
If the Serial Peripheral
Interface is active the I
interface is not available.
If lines are unused keep pins
open.
Without Java: USB port
Under Java: Debug interface
for development purposes.
If lines are unused keep pins
max = 2.0V
open.
All pins which are configured
as input must be connected to
a pull-up or pull-down resistor.
If lines are unused (not
configured) keep pins open.
s
2
C Bus
=0.4V at 3mA specified.
2
C
24.05.2005