cx82100 Conexant Systems, Inc., cx82100 Datasheet - Page 43

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cx82100

Manufacturer Part Number
cx82100
Description
Home Network Processor Hnp
Manufacturer
Conexant Systems, Inc.
Datasheet

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Table 2-3. CX82100 HNP Pin Signal Definitions (Continued)
101306C
HAD[15:0]
HAD[29:16]
HC[07:01]
HC08 (HRD#)
HC09 (HWR#)
HC00 (HCS0#)/
GPIO32
HC10 (HRDY#)
HAD31
(HCS4#)/
GPIO37
I2C_DATA
(GPIO15)
I2C_CLOCK
(GPIO16)
Pin Signal
N7, M9, L8, K9,
J9, N10, P10,
M10, L9, K10,
L10, M11, J10,
L11, N12, P12
L3, L1, M2, M1,
N2, N1, M3,
N3, P3, M4,
N4, P4, L4, M5
L5, M6, K6, N6,
P6, L6, P7
M13
M12
P14 (CX82100
-11/-12/-51/-51)
P13 (CX82100
-41/-42)
P14 (CX82100
-41/-42)
J8
E2
E3
Pin No.
Conexant Proprietary and Confidential Information
CX82100 Home Network Processor Data Sheet
I/O
O
O
O
O
I
O
I/O
O
O
I/O
Host Parallel Expansion Bus Interface
Itpu/Ot4
It/Ot4
It/Ot4
It/Ot4
It/Ot4
It/Ot4
Itpd/Ot4
It/Ot4
Itpu/Ot4
Itpu/Ot4
I/O Type
Serial EEPROM Interface
Data Lines 15-00.
Typically, connect to Flash ROM D[15:0], respectively.
Address Lines 20-7.
Typically, connect to Flash ROM A[20:10], respectively.
Address Lines 6-0.
Typically, connect to Flash ROM A[6:0], respectively.
Read Enable. Active low read enable asserted when data is
transferred from the selected device onto the data bus.
Typically, connect through 51 Ω as HRD# to Flash ROM OE# and
through 51 Ω as HRDUA# to UART OE#.
Write Enable. Active low write enable asserted when data is
transferred from the data bus into the selected device.
Typically, connect through 51 Ω as HWR# to Flash ROM WR# and
through 51 Ω as HWRUA# to UART WR#.
Flash ROM Chip Enable. Active low output enables optional Flash
ROM when asserted.
Connect to Flash ROM CE#.
Application Dependent.
Application Dependent.
Serial EEPROM Data. I2C_DATA is a bidirectional data line used
to transfer data into and out of the EEPROM. Connect to the
EEPROM SDA pin and to +3.3V through 4.7K Ω.
Serial EEPROM Shift Clock. The I2C_CLOCK output is used to
clock all data into and out of the EEPROM. Connect to the
EEPROM SCL pin and to +3.3V through 4.7K Ω.
Signal Name/Description
2-13

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