AM7968 AMD [Advanced Micro Devices], AM7968 Datasheet - Page 23

• Manufacturer Part Number: AM7968
• Description: TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface)
• Manufacturer: AMD [Advanced Micro Devices]

Notes:
1. DMS = GND = 8 Bit Mode
2. DMS = V
3. Two 8-bit local mode systems in parallel will result in an effective data rate of 200 Mbps.
4. Use inverter for operation above 140 MHz only.
*Alternatively, the X1 inputs may be driven by external TTL frequency sources.
SERIN+ SERIN–
CNB
DSTRB
Destination
Data
CC
DO0– DO7
= 9 Bit Mode
SEROUT+
SEROUT–
TLS
DI0 – DI7
(Note 4)
3.3 MHz to
17.5 MHz
8
TAXI RX #1
X1
Source
Data
Message Transfer Control Logic
(Note 1)
DMS
(Note 1)
CO0 – CO3
Data Path Control Logic
8
X2
*
Destination
Command
4
TAXI TX #1
DMS
TLS = GND = Local Mode
TLS = GND = Local Mode
3.3 MHz to
17.5 MHz
X1
CSTRB
Figure 3. TAXIchip System in Local Mode
Command
CI0 – CI3
Source
CLOCK
X2
4
*
VLTN
IGM
STRB
CLK
Am7968/Am7969
ACK
CNB
DSTRB
SERIN+ SERIN–
Destination
Pin 11 = Don’t Connect = Local Mode
Pin 11 = Don’t Connect = Local Mode
Data
DO0 – DO8
SEROUT+
SEROUT–
TLS
9
TAXI RX #2
(Note 4)
Source
DI0 – DI8
Data
3.3 MHz to
17.5 MHz
Message Transfer Control Logic
X1
DMS
(Note 2)
CO0 – CO2
9
Data Path Control Logic
X2
Destination
Command
*
TAXI TX #2
DMS
3
X1
CSTRB
Command
CI0 – CI2
Source
CLOCK
To Other Stages
X2
3
VLTN
IGM
STRB
07370F-12
AMD
CLK
ACK
19