|
|
PDF AM79C901A Data sheet ( Hoja de datos )
| Número de pieza | AM79C901A | |
| Descripción | HomePHY Single-Chip 1/10 Mbps Home Networking PHY | |
| Fabricantes | AMD | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AM79C901A (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
www.DataSheet4U.com
PRELIMINARY
Am79C901A
HomePHY™
Single-Chip 1/10 Mbps Home Networking PHY
DISTINCTIVE CHARACTERISTICS
n Fully integrated 1 Mbps HomePNA Physical
Layer (PHY) as defined by Home Phoneline
Networking Alliance (HomePNA)
specification 1.1
— Optimized for home networking applications
over existing telephone wire
— Media Independent Interface (MII)-compatible
for connecting external Media Access
Controller (MAC)
— In-band control features:
Adjustable power and speed levels
32 bits of reserved in-band messaging piggy-
backed on Ethernet packet
— Register programmable features:
Power control
Speed control
Performance registers
Optional control of Squelch algorithm
Major frame timing parameters programma-
ble: ISBI, AID ISBI, pulse width, inter-symbol
time
— any1Home™ link detection:
Indicates to the MAC that a valid home net-
working node has been detected
Detects a network failure and allows the
upper layer protocol to take corrective action
n Fully integrated 10 Mbps Ethernet transceiver
— Comprehensive Auto-Negotiation
implementation
— IEEE 802.3u-compliant MII
— Full-duplex operation supported on the MII
port with independent Transmit (TX) and
Receive (RX) channels
— Optimized for 10BASE-T applications
n Compliant with HomePNA specification 1.1
n General Purpose Serial Interface (GPSI)/Serial
Peripheral Interface (SPI)
n Extensive programmable internal/external
loopback capabilities
n Extensive LED status support
n IEEE 1149.1-compliant JTAG Boundary Scan
test access port interface
n Very low power consumption
n +3.3 V power supply along with 5 V tolerant I/Os
enable broad system compatibility
— XTAL1 supports 3.3 V I/O only
— XTAL2 supports 1.0 V I/O only
n Available in 68-pin PLCC and 80-pin TQFP
packages
n Industrial Temperature Support (-40ºC to +85ºC)
GENERAL DESCRIPTION
The Am79C901A HomePHY is a single-chip device
that contains both a physical layer (PHY) for 1 Mbps
data networking over existing residential telephone
wiring based on the specification published by
HomePNA and a physical layer for supporting the
IEEE 802.3 standard for 10BASE-T. The HomePHY
is targeted at embedded applications and has both
GPSI and MII-compatible interfaces.
The integrated HomePNA transceiver is a physical
layer device that enables data networking at speeds
up to 1 Mbps over existing residential phone wiring
regardless of topology and without disrupting
telephone (POTS) service.
The integrated Ethernet transceiver is a physical
layer device supporting the IEEE 802.3 standard for
10BASE-T. It provides all of the PHY layer functions
required to support 10 Mbps data transfer speeds.
A compliant IEEE 1149.1 JTAG test interface for
board level testing is provided. The Am79C901A
PHY also provides on-chip LED drivers for collision,
link integrity, speed, activity, and power output.
The Am79C901A PHY is fabricated in an advanced
low power 3.3 V CMOS process to provide low
operating current for power sensitive applications.
The Am79C901A PHY is available in the
commercial temperature range (0ºC to +70ºC) in
68-pin PLCC and 80-pin TQFP packages. The
Am79C901A also supports the industrial
temperature range (-40ºC to +85ºC) in the 80-pin
TQFP package. The industrial temperature range is
well suited to environments with enclosures with
restricted air flow or outdoor equipment.
Publication# 22304 Rev: C Amendment/0
Issue Date: July 2000
Refer to AMD’s Website (www.amd.com) for the latest information.
1 page  
PRELIMINARY
1 Mbps HomePNA Receive Timing (GPSI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
1 Mbps HomePNA Clock Timing (GPSI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
MII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
10BASE-T Transmit Timing (MII). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
10BASE-T Receive Timing (MII) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
10BASE-T Transmit Clock Timing (MII). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
10BASE-T Receive Clock Timing (MII) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
1 Mbps HomePNA Transmit Timing (MII) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
1 Mbps HomePNA Receive Timing (MII). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
1 Mbps HomePNA Clock Timing (MII). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
MDC/MDIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
10BASE-T PMD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
1 Mbps HomePNA Analog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
JTAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
External Clock (XTAL1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
PHYSICAL DIMENSIONS*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
PL 068 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
PQT 80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Am79C901A
5
5 Page 
PIN DESIGNATIONS (PQT 80)
Listed By Pin Number
PRELIMINARY
Pin Pin
No. Name
1 NC
Pin
No.
21 NC
Pin
Name
Pin
No.
41 NC
Pin
Name
2 NC
3 RXD1
4 RXD0/RXDAT
22 NC
23 TXD2
24 TXD3/CS
42 NC
43 AVDD
44 AVSS
5 DVSS
6 RX_DV
7 DVDD
25 DVSS
26 COL/CLS
27 DVSS
45 AVSS
46 HRTXRXN
47 AVDD
8 RX_CLK/RXCLK 28 CRS/RXCRS
9 AVDD
29 DVDD
10 PHY_SEL
30 DVDD
48 HRTXRXP
49 AVDD
50 IREF
11 DVDD
12 RX_ER
13 DVSS
31 TDO
32 TCK
33 TMS
51 AVSS
52 TX+
53 AVDD
14 GM_MODE
34 TDI
15 TX_CLK/TXCLK 35 XCLK/XTAL
16 TX_EN/TXEN
36 XTAL2
54 TX-
55 AVSS
56 RX+
17 TXD0/TXDAT
18 TXD1/SDI
19 NC
37 XTAL1
38 AVDD
39 NC
57 AVDD
58 RX-
59 NC
20 NC
40 NC
60 NC
Note: NC pins are reserved and should be left unconnected.
Pin Pin
No. Name
61 NC
62 NC
63 RESET
64 TEN
65 MII/GPSI
66 PHY_AD
67 ISOLATE
68 MDIO/SDO
69 DVSS
70 MDC/SCLK
71 LED_LINK
72 LED_COL
73 LED_ACTIVITY
74 DVDD
75 LED_POWER
76 LED_SPEED
77 DVSS
78 RXD3
79 RXD2
80 NC
Am79C901A
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AM79C901A.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AM79C901A | HomePHY Single-Chip 1/10 Mbps Home Networking PHY | AMD |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |