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PDF AW6688 Data sheet ( Hoja de datos )
| Número de pieza | AW6688 | |
| Descripción | Stand-Alone Ethernet Controller | |
| Fabricantes | AWINIC | |
| Logotipo |  |
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AW6688 Datasheet
December 2011 V1.0
Stand-Alone Ethernet Controller
FEATURES
5X5 mm, 32-pin QFN
Compatible with Motorola SPI SPEC
Input clock frequency up to 60MHz
Only support phase 0
Only support polarity 0
IEEE 802.3 compatible Ethernet controller
Fully compatible with 10/100 BASE-T
networks
Integrated MAC and 10/100 PHY
Supports full and half duplex modes
Programmable padding and CRC
generation
Programmable padding and CRC stripping
Programmable flow control
Supports Ethernet frame length up to
1522 bytes
Flexible address filtering modes
8k byte receive buffer
4k byte transmit buffer
Multi-function LED output
2.8V IO supply and 1.2V core supply
CMOS process technology
The AW6688 adopts TRQ5x5-32L package:
INTR 25
GND_D 26
VCC12D 27
NC 28
NC 29
TE 30
NC 31
GND_D 32
AW6688
33
GND_A
16 CKO
15 LED1
14 LED0
13 RSTN
12 NC
11 NC
10 NC
9 GND_A
Copyright© 2008 by AWINIC Technology Co. Ltd.
Page 1 of 24
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1 page  
AW6688 Datasheet
December 2011 V1.0
4 IO DESCRIPTION
Table 1 IO description
Name
Number
VCC12D 1
RSET_BG 2
Type
PWR
ANA
Dir
I
VCC33A
RXIP
RXIN
3
4
5
PWR
ANA
ANA
I
I
VCC12A
TXOP
TXON
6
7
8
PWR
ANA
ANA
O
O
GND_A
NC
NC
NC
RSTN
LED0
LED1
CKO
MISO
MOSI
SCK
CSN
GND_D
VIO28
XTAL_P
XTAL_N
INTR
GND_D
VCC12D
NC
NC
TE
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
GND
PD
PD
PD
PU I
PD O
PD O
O
O
I
I
PU I
GND
PWR
XTAL I
XTAL O
PD O
GND
PWR
PD
PD
I
Description
1.2V digital power supply
Off-chip resistor, connect a resistor of 12.3 kΩ ±1% to
the ground
3.3V analog power supply
Differential received signal pair. The differential data
from the media is received on the RXIP/RXIN signal
pair in the MDI mode.
1.2V analog power supply
Differential transmitted signal pair. The differential
data is transmitted to the media on the TXOP/TXON
signal pair in the MDI mode.
Analog ground
System reset input, low active
LED output
LED output
Clock output
SPI MISO
SPI MOSI
SPI SCK
SPI CSN
Digital ground
2.8V digital IO power supply
25-MHz crystal input. A 25-MHz parallel-resonant
crystal is used to connect these pins.
Interrupt output
Digital ground
1.2V digital power supply
Test enable, high active
Copyright© 2008 by AWINIC Technology Co. Ltd.
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AW6688 Datasheet
December 2011 V1.0
the SPI command. The length of the command is unlimited. The address of the data byte
following the first data byte of the SPI command is increased one by one.
Figure 3 SPI write internal register command timing
CSN
SCK
MOSI
MSB
LSB MSB
LSB MSB
LSB MSB
LSB
MISO
B0 B1 B2
SPI command ID
and parameter
SPI command
parameter
SPI payload 0
SPI payload
Byte N
SPI payload
N-2
6.1.2 Read INT REG Command
The command ID of the write INT REG command is 4’b0001. This command is used to read the
internal control registers. The address in the command is the byte address of the first data byte in
the SPI command. The two dummy wait bytes after the address are for the chip to get the read
data ready. The length of the command is unlimited. The address of the data byte following the
first data byte of the SPI command is increased one by one.
Figure 4 SPI read internal register timing
CSN
SCK
MOSI
MSB
LSB MSB
LSB
MISO
MSB
LSB MSB
LSB
B0 B1 B2 B3 B4
SPI command ID
and parameter
SPI command
parameter
Dummy wait 0
Dummy wait 1
SPI payload 0
SPI payload
Byte N
SPI payload
N-4
6.1.3 Write MAC REG Command
The command ID of the write MAC REG command is 4’b0010. This command is used to write
the MAC control registers. The address in the command is the byte address of the first data byte
Copyright© 2008 by AWINIC Technology Co. Ltd.
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| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet AW6688.PDF ] | |
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