cx29503 Mindspeed Technologies, cx29503 Datasheet - Page 46

• Manufacturer Part Number: cx29503
• Description: Cx29503 Broadband Access Multiplexer Data Sheet
• Manufacturer: Mindspeed Technologies

Product Description
Table 1-8. Pin Definitions(4 of 6)
1-20
TSB_RSTUFF [2:0]
TSB_TSTUFF [2:0]
TSB_TSYNCI[2:0]
TSB_OTDAT [2:0]
SIB_RXDAT[7:0]
TSB_OCLK[2:0]
TSB_OSTB[2:0]
TSB_TDAT[2:0]
TSB_ORSTUFF
TSB_OTSTUFF
TSB_CLK[2:0]
TSB_STB[2:0]
TSB_TSYNC0
SIB_RXPRTY
Symbol
[2:0]
[2:0]
[2:0]
Reset
low
low
low
low
low
low
low
low
low
—
—
—
—
—
(1)
Type
OI2
IPU
IPU
O2
O2
O2
O2
O2
O2
O2
O2
I
I
I
System Side Interface, Time Slot Bus
Mindspeed Technologies™
(2)
Preliminary Information
Signal
Name
—
—
—
—
—
—
—
—
—
—
—
—
—
—
SI-Bus Receive Data—This bus carries the receive data
from the SONET/SDH MUX to the mapper/MUX blocks. The
data is sampled on the falling edge of SIBRXCLK.
SI-Bus Parity Bit—This bit serves as the odd parity bit
calculated over SIBRXDAT[7:0]. The bit is sampled on the
falling edge of SIBRXCLK.
Payload Time Slot Bus Clock—This clock is based on
SIB_TXHSCLK or CLK_DS3. It is used for all timing on the
Payload Time Slot bus.
Overhead Time Slot Bus Clock—This clock is a divide-by-4
version of TSB_CLK. It is used for all timing on the
Overhead Time Slot bus.
Payload Time Slot Bus Transmit Stuff Indication—When
high, indicates data is not needed eight time slots later.
Overhead Time Slot Bus Stuff Indication—When high,
indicates data is not needed eight time slots later.
Payload Bus Transmit DS0 Location Indicator from System
Side—When high, this indicates that the first byte of the
first DS0/E0 within the corresponding DS1 is expected on
the transmit payload bus.
Payload Bus Transmit DS0 Location Indicator to System
Side—When high, this indicates that the current slot
carries the first byte of the first DS0 within the
corresponding DS1 on the transmit payload bus.
Payload Time Slot Bus Transmit Data—This is the serial
payload data to be transmitted. This signal is sampled in
the rising edge of TSB_TSCLK.
Overhead Time Slot Bus Transmit Data—This is the serial
overhead data to be transmitted. This signal is sampled in
the rising edge of TSB_OTSCLK.
Payload Time Slot Bus Strobe—A strobe signal that
indicates the start of an 84 time slot frame for payload data.
Overhead Time Slot Bus Strobe—A strobe signal that
indicates the start of an 84 time slot frame for overhead
data.
Payload Time Slot Bus Receive Stuff Indication—When
high, indicates that data on TSB_RDAT is not valid data.
Overhead Time Slot Bus Receive Stuff Indication—When
high, indicates that data on TSB_ORDAT is not valid data.
Name and Function
CX29503 Data Sheet
29503-DSH-002-B