CM220 Datasheet, PDF (8/19 Pages) C-Media Electronics – Updateable USB2.0 Card Reader Controller

CM220
Updateable USB2.0 Card Reader Controller
NC 29
NC 29
NC 30
NC 31
NC 32
NC 33
NC 34
NC 35
NC 36
13 37
14 38
15 39
16 40
17 41
18 42
19 43
20 44
20 44
20 44
21 45
22 46
23 47
24 48
25 49
26 50
27 51
28 52
29 53
29 53
30 54
31 55
NC 56
32 VCC3V(O)
Digital power. Connected to 3.3 V
32 VCC3V(I)
Digital power. Connected to 3.3 V
33 CFD[1]
DIO, PD CF card data bus
34 CFD[8]
DIO, PD CF card data bus
35 CFD[2]
DIO, PD CF card data bus
36 CFD[9]
DIO, PD CF card data bus
37 CFD[10]
DIO, PD CF card data bus
38 CFCD
DI, PU CF Card detect pin, low active
39 GND(O)
Digital Ground pin
45 VCC(CORE)
Digital power. Connected to 2.5 V
47 VDDH
49 GND(CORE)
Digital power. Connected to 3.3 V
(Regulator input)
Digital Ground pin
56 VCC_U20
57 GND_U20
Digital power pin. Connected to 2.5V
power
Analog ground
58 XSCI
Analog input. Crystal oscillator input 12M
59 XSCO
60 VCC3O_U20
60 VCCHSR
60 VCCHST
61 GND_U20
Analog output. Crystal oscillator output
12M
Analog power pin. Connected to 3.3V
power
Analog power pin. Connected to 3.3V
power
Analog power pin. Connected to 3.3V
power
Analog ground
62 RREF
63 DM
64 DP
65 GND_U20
Analog input.
Connects external reference resistor (12.1k
+- 1%) to
Analog GND
Bidirection pin, USB 2.0 data in data
negative pin terminal
Bidirection pin, USB 2.0 data in data
positive pin terminal
Analog ground
66 RPU
67 DMRS
Connects external register (1.5K+- 1.5%) to
analog 3.3V
USB 1.1 data in data negative pin terminal
68 DPRS
USB 1.1 data in data positive pin terminal
69 VCC3I_U20
69 VCC3O_U20
70 GND_U20
Analog power pin. Connected to 3.3V
power
Analog power pin. Connected to 3.3V
power
Analog ground
71 VCCA
72 GND(O)
PHY power in for analog. Connected to
3.3V
Digital Ground pin
Date: 8/2/2005
-8-
Version: 1.4