CM220 Datasheet, PDF (7/19 Pages) C-Media Electronics – Updateable USB2.0 Card Reader Controller

CM220
Updateable USB2.0 Card Reader Controller
4. PIN DESCRIPTIONS & ASSIGNMENT
48 100
Pin# pin #
NC 2
128
pin #
Symbol
1 XDCD
NC 3 2 SMCD
NC 4 3 SMCEB
10 5 4 SMWP
11 6 5 TMODE
NC NC
NC ^NC
6 GPIO1
7 CFLED
NC NC 8 VCC3V(O)
NC NC 9 GND(O)
NC 7 10 CFPWR
NC 8 11 CFD[3]
NC 9 12 CFD[11]
NC 10 13 CFD[4]
NC 11 14 CFD[12]
NC 12 15 CFD[5]
NC 13 16 CFD[13]
NC 14 17 CFD[6]
NC 15 18 CFD[14]
NC 16 19 CFD[7]
12 17 20 VCC3V(O)
NC 18 21 GND(O)
NC 19 22 CFD[15]
NC 20 23 CFCS0
NC 21 24 CFCS1
NC 22 25 CFIOR
NC 23 26 CFIOW
NC 24 27 CFRST
NC 25 28 CFSA[2]
NC 26 29 CFSA[1]
NC 27 30 CFSA[0]
NC 28 31 CFD[0]
I/O Type
Description
DI, PU XD Card detect pin, low active
DI, PU SM Card detect pin, low active
DO
SM card enable, low active
DI, PU SM card write protect, low active
DI, PD Chip test mode enable, High active
DI
General Purpose Input Output
DO
CF Card access indicator Led, High active
Digital power. Connected to 3.3 V
Digital Ground pin
DO
CF Card power control, low active
DIO, PD CF card data bus
DIO, PD CF card data bus
DIO, PD CF card data bus
DIO, PD CF card data bus
DIO, PD CF card data bus
DIO, PD CF card data bus
DIO, PD CF card data bus
DIO, PD CF card data bus
DIO, PD CF card data bus
Digital power. Connected to 3.3 V
Digital Ground pin
DIO, PD CF card data bus
DO,
CF card select 0
DO,
CF card select 1
DO,
CF card read enable, low active
DO,
CF card write enable, low active
DO,
CF card reset, low active
DO,
CF card address bus
DO,
CF card address bus
DO,
CF card address bus
DIO, PD CF card data bus
Date: 8/2/2005
-7-
Version: 1.4