MC75i Hardware Interface Description
5.5 Pin Assignment and Signal Description
101
MC75i_HD_v01.100a
Page 89 of 122
2009-08-13
Confidential / Released
SPI
Serial
Periph-
eral Inter-
face
SPIDI
I
V
OL
max = 0.2V at I = 2mA
V
OH
min = 2.55V at I = -0.5mA
V
OH
max = 3.00V
V
IL
max = 0.8V
V
IH
min = 2.15V,
V
IH
max = V 0.3V = 3.05V
If the Serial Peripheral Interface
is active the I
2
C interface is not
available.
If unused keep lines open.
I2CDAT_SPID
O
O
I2CCLK_SPIC
LK
O
SPICS
O
USB
VUSB_IN
I
V
IN
min = 4.0V
V
IN
max = 5.25V
If unused keep lines open.
USB_DN
I/O Differential Output Crossover volt-
age Range
V
CRS
min = 1.5V, V
CRS
max = 2.0V
Line to GND:
V
OH
max = 3.6V
V
OH
typ = 3.2V
V
OH
min = 3.0V at I=-0.5mA
V
OL
max = 0.2V at I=2mA
V
IH
min = 2.24V
V
IL
max = 0.96V
Driver Output Resistance
Z
typ
= 32Ohm
Pullup at USB_DP
Rtyp=1.5kOhms
USB_DP
I/O
Digital
Audio
interface
DAI0 O
V
OL
max = 0.2V at I = 2mA
V
OH
min = 2.55V at I = -0.5mA
V
OH
max = 3.00V
V
IL
max = 0.8V
V
IH
min = 2.15V
V
IH
max = V 0.3V = 3.05V
See
for details.
Unused input lines should be
tied to GND via pull down resis-
tors. Unused output lines must
be left open.
DAI1 I
DAI2 O
DAI3 O
DAI4 I
DAI5 I
DAI6 I
Table 30:
Signal description
(Continued)
Function
Signal name
IO
Signal form and level
Comment
