m21120 Mindspeed Technologies, m21120 Datasheet - Page 5

• Manufacturer Part Number: m21120
• Description: M21120 Crosspoint Switch Data Sheet
• Manufacturer: Mindspeed Technologies

21120-DSH-001-B, 3/27/03
Figure 2. M21120 Crosspoint Switch Functional Block Diagram
Table 1. Terminal Functional Descriptions
outp[0:33]
outn[0:33]
inp[0:33]
inn[0:33]
xds/sclk
inp/n[33]
xoutdis
d[7]/do
Name
d[6]/di
xindis
a[7:0]
d[5:0]
inp/n[0]
inp/n[1]
r/xw
xindis
Positive differential high-speed input data
Negative differential high-speed input data
Positive differential high-speed output data
Negative differential high-speed output data
Hardware disable of all Inputs (active low, with internal pulldowns)
Hardware disable of all outputs (active low, with internal pulldowns)
8 Bit parallel address (bit-7: MSB, bit-0: LSB)
6 low bits of 8-bit parallel data (bit-0: LSB)
7th bit of parallel data / serial data input
8th bit of parallel data (MSB) / serial data output
Parallel I/0: H = read, L = write
Parallel I/0: data latch, serial I/0: serial clock (hysteresis)
Equalization
clktxp/n
dotxp/n
xentx
trig
xds/sclk
ser/xpar
d[7]/do
d[6]/di
a[7:0]
d[5:0]
xtest
r/xw
xrst
xcs
Buffer
(PCML)
Input
PRBS
34 x 34 3.2 Gbps Crosspoint Switch with Input Equalization
2
TX
n
-1
Registers
Serial I/0
General
Parallel
(4)
Function
68
and
(Sheet 1 of 2)
Input/Output Signals
Mindspeed Technologies™
Hardware Control
Read
Write
Data
Data
Differential
Crosspoint
34 x 34
Active Configuration
Input Configuration
Data Decode
(master FF bank)
(slave FF bank)
Latch
Latch
68
PRBS
Counter
2
RX
n
Notes
-1
1
1
–
–
–
–
–
–
–
–
–
–
xset
Output
Buffer
FF
(PCML)
Differential I/O
Single-ended I/O
Legend
xrstrx
Type
I/O
I/O
I/O
O
O
I
I
I
I
I
I
I
perror
dirxp/n
clkrxp/n
xenrx
outp/n[0]
outp/n[1]
outp/n[33]
xoutdis
M21120
Signal
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
PCML
PCML
PCML
PCML
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