CM8888 Datasheet, PDF (11/25 Pages) California Micro Devices Corp – CMOS INTEGRATED DTMF TRANCEIVER

Oxygen^TM Express-series CM8888
High-Performance PCI Express Audio Processor
Pin Descriptions
The following table gives the pin descriptions for the Oxygen Express^TM-series HD CM8888 series. The
abbreviations used in the pin description table are explained here:
DI:
digital input signal
DO: digital output signal
DIO: digital bidirectional signal
AI:
analog input
PU: pull-up with 75KΩ resistor
PD: pull-down with 75KΩ resistor
#: low active signal
Table 5.1 Pin description table of Oxygen Experss^TM HD CM8888 series
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Pin Name
VDDRX
HSIP
HSIN
GNDRX
REFCLK_P
REFCLK_M
VDDPLL / VDDTX
HSOP
HSON
GNDPLL / GNDTX
VDDBIAS
REXT
GNDBIAS
VDD18
DVCC
XGPIO_9
XGPIO_10
XGPIO_11
Type
P
AI
AI
G
AI
AI
P
AO
AO
G
P
AO
G
P
P
DIO,PD
DIO,PD
DIO,PD
PHY VDD
PHY Signal
PHY Signal
PHY GND
PHY Signal
PHY Signal
PHY VDD
PHY Signal
PHY Signal
PHY GND
Description
PHY VDD
PHY Signal
PHY GND
Digital 1.8V Power
Digital Core power
GPIO9, default Input
GPIO10, default Input
GPIO11, default Input
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