cx20493-35/app Conexant Systems, Inc., cx20493-35/app Datasheet - Page 38

• Manufacturer Part Number: cx20493-35/app
• Description: With Cx20493 Smartdaa?
• Manufacturer: Conexant Systems, Inc.

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Table 3-1. CX81801 Modem 128-Pin LQFP Pin Signals for Parallel Interface (PARIF = High)
3-6
Pin
GND
HD5 (PC5)
VDD
HD6 (PC6)
HD7 (PC7)
PARIF
HA0 (PD0)
HA1 (PD1)
HA2 (PD2)
STPMODE# (PD3)
GND
HCS# (PD4)
HWT# (PD5)
HRD# (PD6)
RESERVED (PE0)
VDD
VOICE# (PE1)
RESERVED (PE2)
NVMDATA (PE3)
HS_LCS (PE4)
VDD_CORE
CELDATA (PE5)
SSD_RING# (PE6)
LINE_SEL (PE7)
RESERVED (PA0)
GND
SSD_INT (PA1)
PA2
RESERVED (PA3)
RESERVED (PA4)
RESERVED (PA5)
PA6
NVMCLK (PA7)
RESET#
SR3OUT
SR3IN (P_PX01)
M_CLK (P_PB00)
SA2CLK (P_PX05)
SR2IO (P_PX06)
VDD
P_PX00
P_PX02
P_PX03
GND
SR4IN
PD7
CX81801-7x/8x SmartV.XX Modem in 128-Pin LQFP with CX20493 in 32-Pin LQFP Data Sheet
Signal Label
I/O
O
I/O
P
I/O
I
I
I
I
I
G
I
I
I
O
P
O
O
I/O
I
P
I/O
O
I
O
G
O
I/O
I
I
G
I
I/O
O
I
O
I
O
I
P
I/O
I/O
I/O
G
I
I/O
I/O
Ith/Ot8
PWR
Ith/Ot8
Ith/Ot8
Itpu
Ithpd/Ot2
Ithpd/Ot2
Ithpd/Ot2
Ith/Ot2
GND
It
Ithpu
Ithpu
It/Ot8
PWR
It/Ot2
It/Ot2
It/Ot2
It/Ot2
PWR
It/Ot2
It/Ot2
It/Ot8
It/Ot2
GND
It/Ot2
It/Ot2
Itpu/Ot2
Itpu/Ot2
GND
It/Ot2
It/Ot2
It/Ot2
It
Ot2
Itk/Ot2
It/Ot2
Itpu/Ot2
It/Ot2
PWR
It/Ot8
Itpu/Ot2
Itpu/Ot2
GND
Itk
It/Ot2
I/O Type
RESERVED
NVRAM: SDA
NC
VC: M_RXOUT
VC: M_STROBE
VC: M_CNTRLSIN
NC
NC
NC
NC
HB: HD5
+3.3V
HB: HD6
HB: HD7
NC (parallel interface)
HB: HA0
HB: HA1
HB: HA2
NC
GND
HB: CS#
HB: WT#
HB: RD#
NC
+3.3V
DAA: VOICE#
GND through 47 KΩ
Internal core voltage
+3.3V through 47 KΩ
NC
+3.3V through 47 KΩ
NC
GND
NC
NC
RESERVED
RESERVED
GND
+3.3V through 47 KΩ
NVRAM: SCL
HB: RESET#
VC: M_TXSIN
VC: M_CLKIN
+3.3V
GND
NC
Interface
Conexant
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
Pin
D3
D4
D5
GND
D6
D7
A0
A1
A2
A3
A4
A5
A6
VDD
A7
A8
A9
PLLVDD
PLLGND
A10
VDD_CORE
A11
A12
A13
A14
GND
A15
SR2CLK (P_PGP05)
DIB_DATAP
DIB_DATAN
GND
PWRCLKP
PWRCLKN
DSPKOUT
A16 (PB0)
VDD
RESERVED (PB1)
ROMSEL# (PB2)
GND
RAMSEL# (PB3)
A17 (PB4)
A18 (PB5)
EXT_RES# (PB6)
VDD
HINT (PB7)
TESTP
Signal Label
I/O
I/O
I/O
G
I/O
O
O
O
O
O
O
O
P
O
O
P
G
O
O
O
O
G
O
I
I/O
G
O
O
O
O
P
O
O
G
O
O
O
O
P
O
I
I/O
O
P
O
I/O
I/O
Ith/Ot2
Ith/Ot2
Ith/Ot2
GND
Ith/Ot2
Ith/Ot2
It/Ot8
It/Ot8
It/Ot8
It/Ot8
It/Ot8
It/Ot8
It/Ot8
PWR
It/Ot8
It/Ot8
It/Ot8
PWR
GND
It/Ot8
PWR
It/Ot8
It/Ot8
It/Ot8
It/Ot8
GND
It/Ot8
Itpu/Ot2
Idd/Odd
Idd/Odd
GND
Odpc
Odpc
It/Ot2
It/Ot2
PWR
It/Ot2
Ot2
GND
It/Ot2
It/Ot2
It/Ot2
It/Ot2
PWR
It/Ot8
Itpu
I/O Type
EB: D3
EB: D4
EB: D5
GND
EB: D6
EB: D7
EB: A0
EB: A1
EB: A2
EB: A3
EB: A4
EB: A5
EB: A6
+3.3V
EB: A7
EB: A8
EB: A9
+3.3V and to GND
through 0.1 µF
GND
EB: A10
Internal core voltage
EB: A11
EB: A12
EB: A13
EB: A14
GND
EB: A15
VC: M_SCK
DIB: Data Pos.
Channel
DIB: Data Neg.
Channel
GND
DIB: Transformer
primary winding non-
dotted terminal
DIB: Transformer
primary winding dotted
terminal
Speaker Circuit
EB: A16
+3.3V
NC
EB: ROM CE#
GND
EB: RAM CS#
EB: A17
EB: A18
NC
+3.3V
HB: HINT
NC
Interface
102247B