28478G-18 Mindspeed Technologies, 28478G-18 Datasheet - Page 82

• Manufacturer Part Number: 28478G-18
• Description: Multichannel Synchronous Communications Controller 208-Pin BGA
• Manufacturer: Mindspeed Technologies

Specifications of 28478G-18

• Package: 208BGA
• Maximum Data Rate: 32768 Kbps
• Transmission Media Type: Wire
• Power Supply Type: Analog
• Typical Supply Current: 250 mA
• Typical Operating Supply Voltage: 3.3 V
• Minimum Operating Supply Voltage: 3 V
• Maximum Operating Supply Voltage: 3.6 V

4.7.3.1
The TDAT signal from MUSYCC is the only output signal in the serial interface. For each bit time specified by the
TCLK input signal to MUSYCC and on each active edge for a data bit specified by the TDAT_EDGE bit field, a
value for the TDAT bit must be determined and output
illustrates the logic used to determine the output value.
Figure 4-8.
28478-DSH-002-E
GENERAL NOTE:
(1)
(2)
(3)
(4)
(5)
TRANSMITTER_NOT_ENABLED. (Check TXENBL bit field in
CHANNEL_IS_MAPPED. (Verify channel to time slot mapping enabled in
CHANNEL_IS_ACTIVATED. Verify Channel Activate Service Request issued.
BLP_OUTUT. Data taken from shared memory, through the internal FIFO and ready for transmission.
THREE_STATE_OUTPUT. Check TRITX bit field in Port Configuration Descriptor.
Transmit Data Bit Output Value Determination
Transmit Data Bit Output Value Determination
Preliminary Information / Mindspeed Proprietary and Confidential
8478_020
if ( TRANSMITTER_NOT_ENABLED )
else
Mindspeed Technologies
TDAT <= three-state
if ( CHANNEL_IS_MAPPED )
else
else
if ( CHANNEL_IS_ACTIVATED )
if ( THREE_STATE_OUTPUT )
else
Table 5-10, Group Configuration
(Table 5-12, Port Configuration
TDAT = BLP_OUTPUT
TDAT = `logic 1'
TDAT = three-state
TDAT = `logic 1'
Table 5-14, Transmit or Receive Time Slot
®
(2)
(1)
Descriptor.)
(4)
(5)
(3)
Descriptor).
Serial Interface
Map.)
Figure 4-8
69