User's Manual

TC63 Hardware Interface Description
Strictly confidential / Draft
s
TC63_HD_V00.432 Page 73 of 97 11.05.2005
Function Signal name IO Signal form and level Comment
ASC1
Serial
interface
RXD1
TXD1
CTS1
RTS1
O
I
O
I
V
OL
max = 0.2V at I = 2mA
V
OH
min = 2.55V at I = -0.5mA
V
OH
max = 3.05V
V
IL
max = 0.8V
V
IH
min = 2.0V
V
IH
max = VEXTmin + 0.3V = 3.05V
Serial interface for AT
commands or data stream.
If lines are unused keep pins
open.
I2CCLK O V
OL
max = 0.2V at I = 2mA
V
OH
min = 2.55V at I = -0.5mA
V
OH
max = 3.05V
I
2
C interface
I2CDAT I/O V
OL
max = 0.2V at I = 2mA
V
IL
max = 0.8V
V
IH
min = 2.0V
V
IH
max = VEXTmin + 0.3V = 3.05V
I2CDAT is configured as
Open Drain and needs a pull-
up resistor in the host
application.
According to the I2C Bus
Specification Version 2.1 for
the fast mode a rise time of
max. 300ns is permitted.
There is also a maximum
V
OL
=0.4V at 3mA specified.
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.
VUSB_IN I V
IN
min = 4.0V
V
IN
max = 5.25V
USB_DN I/O
USB
USB_DP I/O
Differential Output Crossover voltage
Range
V
CRS
min = 1.5V, V
CRS
max = 2.0V
Driver Output Resistance
Z
DRV
typ = 32Ohm
If lines are unused keep pins
open.
DAI0
O
DAI1
I
DAI2
O
DAI3
O
DAI4
I
DAI5 I
Digital Audio
interface
DAI6 I
V
OL
max = 0.2V at I = 2mA
V
OH
min = 2.55V at I = -0.5mA
V
OH
max = 3.05V
V
IL
max = 0.8V
V
IH
min = 2.0V
V
IH
max = VEXTmin + 0.3V = 3.05V
See Table 10 for details.
If unused keep pins open.