IDT77V400 Integrated Device Technology, IDT77V400 Datasheet - Page 33

• Manufacturer Part Number: IDT77V400
• Description: 1.24 Gbps Switching Memory **not Recommended For New Designs**
• Manufacturer: Integrated Device Technology

UTOPIA Rx Cell
Counter byte 3
UTOPIA Rx Cell
Counter byte 2
UTOPIA Rx Cell
Counter byte 1
UTOPIA Rx Cell
Counter byte 0
UTOPIA Tx Cell
Counter byte 3
UTOPIA Tx Cell
Counter byte 2
UTOPIA Tx Cell
Counter byte 1
UTOPIA Tx Cell
Counter byte 0
Pin Controls
IDT77V011
t
t
t
t
t
t
t
t
t
t
t
t
CYC
CH
CL
UCYC
UCH
UCL
TOV
UTS
UTH
ROV
URS
URH
801B
801C
801D
801E
801F
8020
8021
8022
801A
Table 24 AC Electrical Characteristics (Industrial: Vcc = 5V ± 10%, TA = -40 C the 85 C (Part 1 of 3)
SYSCLK Cycle Time
SYSCLK High Time
SYSCLK Low Time
UTOPIA TCLK/RCLK Cycle Time
UTOPIA TCLK/RCLK High Time
UTOPIA TCLK/RCLK Low Time
TxDATA, TENB, TSOC Output Valid from TCLK
TCLAV to TCLK Setup Time
TCLAV to TCLK Hold Time
RENB Output Valid from RCLK
RxDATA, RSOC, RCLAV to RCLK Setup Time
RxDATA, RSOC, RCLAV to RCLK Hold Time
1
2
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
Rx Cell Counter
[31:24]
Rx Cell Counter
[23:16]
Rx Cell Counter
[15:8]
Rx Cell Counter
[7:0]
Tx Cell Counter
[31:24]
Tx Cell Counter
[23:16]
Tx Cell Counter
[15:8]
Tx Cell Counter
[7:0]
Control A
Control B
Table 22 Cell Counter Register Table
Table 23 Misc.+ Register Table
0 - 1
0 - 1
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
33 of 43
0
0
Counter for cells transferred on the receive UTOPIA 2 bus. This counter
will wrap around once the maximum cell count is reached.
Counter for cells transferred on the receive UTOPIA 2 bus. This counter
will wrap around once the maximum cell count is reached.
Counter for cells transferred on the receive UTOPIA 2 bus. This counter
will wrap around once the maximum cell count is reached.
Counter for cells transferred on the receive UTOPIA 2 bus. This counter
will wrap around once the maximum cell count is reached.
Counter for cells transferred on the transmit UTOPIA 2 bus. This counter
will wrap around once the maximum cell count is reached.
Counter for cells transferred on the transmit UTOPIA 2 bus. This counter
will wrap around once the maximum cell count is reached.
Counter for cells transferred on the transmit UTOPIA 2 bus. This counter
will wrap around once the maximum cell count is reached.
Counter for cells transferred on the transmit UTOPIA 2 bus. This counter
will wrap around once the maximum cell count is reached.
Stores condition of Control A pin. "0" CNTRL_A = "0", "1"
CNTRL_A = "1".
Stores condition of Control B pin. "0" CNTRL_B = "0", "1"
CNTRL_B = "1".
20
8
8
25
10
10
2
4
1
—
10
1
—
—
—
—
—
—
20
—
—
20
—
—
March 15, 2001
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns